Children's Gadgets
Found 244 items
- Specifications
- Brand: EMOPET
- Model: AIBI-Pocket
- product_dimensions: 8.1 x 7.9 x 2.75 inches
- item_weight: 1.4 pounds
- manufacturer_recommended_age: 15 years and up
- batteries: 1 Nonstandard Battery batteries required. (included)
Interactive Animal Companions
Energize Lab Eilik DQ Abundant emotions and idle animations
$269.98
- Specifications
- Brand: Energize Lab
- Model: Eilik DQ
- Product Dimensions: 4.3 x 4.1 x 5.2 inches
- Item Weight: 8 ounces
- Country of Origin: China
- Manufacturer Recommended Age: 3 years and up
- Batteries: 1 Lithium Polymer batteries required. (included)
- Specifications
- Brand: Sphero
- Model: BOLT+
- product_dimensions: 2.87 x 2.86 x 2.87 inches
- item_weight: 1.12 pounds
- country_of_origin: China
- manufacturer_recommended_age: 8 years and up
- batteries: 1 Lithium Ion batteries required. (included)
- customer_reviews: ratings_count: 1275, stars: 4.6
- Specifications
- Brand: TangibleFuture
- Model: RLIB01
- Product Dimensions: 4.33 x 3.86 x 0.1 inches
- Item Weight: 1.94 pounds
- OS: iOS, Android
- Connectivity Technologies: Bluetooth
- Special Features: Color Changing
- Form Factor: Robotic
- Color: black
- Manufacturer: TangibleFuture
- Country of Origin: China
- Date First Available: December 29, 2024
- Specifications
- Brand: Wonder Workshop
- Model: DA03
- product_dimensions: 7.17 x 6.69 x 6.34 inches
- item_weight: 3 pounds
- country_of_origin: Philippines
- item_model_number: DA03
- manufacturer_recommended_age: 6 years and up
- batteries: 1 Lithium Ion batteries required. (included)
- is_discontinued_by_manufacturer: No
- release_date: November 3, 2017
Interactive Figures & Robots
SunFounder Pidog Raspberry Pi AI Robot Dog with ChatGPT-4o
$179.99
$170.99
- Specifications
- Brand: SunFounder
- Model: Pidog
- Compatible Motherboards: Raspberry Pi 4/3B+/3B/Zero 2W (Not Included)
- Sensors: Ultrasonic Module, Touch Switch Module, 6 DOF (Gyroscope+Accelerometer) Sensor Module, Sound Direction Module
- Battery Type: 2 x18650 Battery (Included)
- Battery Life: 1.5 Hours
- Connection Mode: WiFi/ AP
- Body Material: Aluminium Alloy
- Camera: 5MP Camera
- Programming Language: Python
- Number of Servos: 12
- Specifications
- Brand: CN-Outlet
- Model: CN102
- noise_control: Adaptive Noise Cancellation
- headphones_jack: 3.5 mm Jack
- connectivity_technology: Wired
- wireless_communication_technology: No wireless
- included_components: Cable, Ear Cushions, Headband
- age_range_description: Kids Teens Adult
- material: Plastic
- specific_uses_for_product: Education, Entertainment
- recommended_uses_for_product: Running, Exercising
- compatible_devices: Laptops, Desktops, Tablets, Telephones, Smart Speaker, Car Audio Systems, Cellphones
- cable_feature: Retractable
- item_weight: 7.72 pounds
- water_resistance_level: Not Water Resistant
- frequency_range: 20 Hz to 20000 Hz
- control_method: Touch
- number_of_items: 1
- audio_driver_type: Dynamic Driver
- carrying_case_material: Plastic
- earpiece_shape: rounded tips
- upc: 606098387360
- product_dimensions: 9.84 x 7.87 x 7.09 inches
- country_of_origin: China
- Specifications
- Brand: Robobloq
- Model: QOOPERS
- product_dimensions: 0.77 x 0.72 x 0.33 inches
- item_weight: 4.16 pounds
- manufacturer_recommended_age: 8 years and up
- batteries: 6 AA batteries required.
- Specifications
- Brand: VTech
- Model: 80-193887
- Product Dimensions: 8.83 x 0.68 x 1.73 inches
- Item Weight: 0.4 Kilograms
- Batteries: 1 Lithium Polymer batteries required. (included)
- Standing Screen Display Size: 1.44 Inches
- RAM Memory Installed Size: 256 MB
- Specifications
- Brand: Energize Lab
- Model: Panxer
- product_dimensions: 5 x 4 x 5 inches
- item_weight: 3.5 pounds
- country_of_origin: China
- item_model_number: Energize Lab Panxer
- manufacturer_recommended_age: 3 years and up
- batteries: 2 Lithium Polymer batteries required. (included)
- Specifications
- Brand: Veeniix
- Model: V991
- Product Dimensions: 18.5 x 3.9 x 7.9 inches
- Item Weight: 3.08 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 6 - 15 years
- Batteries: 2 Lithium Ion batteries required. (included)
- Specifications
- Brand: SSmall
- Model: Dinoid Warrior Tidal Shark
- product_dimensions: 10.6 x 7.87 x 11 inches
- item_weight: 1.3 pounds
- country_of_origin: China
- manufacturer_recommended_age: 16 years and up
- Specifications
- Brand: Petma
- Model: ST01
- Product Dimensions: 12.2 x 7.67 x 6.23 inches
- Item Weight: 2.72 pounds
- Manufacturer Recommended Age: 6 - 12 years
- Batteries: 3 AAA batteries required. (included)
- Specifications
- Brand: BEZGAR
- Model: TR300
- Product Dimensions: 12 x 6 x 14 inches
- Item Weight: 3.47 pounds
- Country of Origin: China
- Item Model Number: TR300
- Manufacturer Recommended Age: 36 months - 18 years
- Batteries: 1 Lithium Ion batteries required. (included)
- Customer Reviews: 4.3 out of 5 stars (67 ratings)
- Specifications
- Brand: HPROMOT
- Model: BG1532
- product_dimensions: 4.8 x 11.5 x 15.7 inches
- item_weight: 2.6 pounds
- country_of_origin: China
- manufacturer_recommended_age: 6 - 12 years
- batteries: 2 Lithium Ion batteries required. (included)
Systems
TREEFIA Drawing Robot Toy Pro Develops hand-eye coordination and creativity
$66.99
$79.99
- Specifications
- Brand: TREEFIA
- Model: Drawing Robot Toy Pro
- Product Dimensions: 1 x 1 x 1 inches
- Item Weight: 1.98 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 5 - 12 years
- Batteries: 1 Lithium Ion batteries required. (included)
- Specifications
- Brand: CYJBE
- Model: LJIA0002
- Product Dimensions: 4.9 x 4.3 x 4.3 inches
- Item Weight: 1.65 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 5 - 12 years
- Batteries: 2 Lithium Ion batteries required. (included)
- Specifications
- Brand: Sonitum
- Model: C10B
- Connectivity Technology: Wired
- Included Components: Headphones, Cable
- Age Range: Kids, Teens, Adults
- Material: Plastic, Leather Ear Cushion
- Package Dimensions: 14.42 x 10.95 x 7.17 inches
- Item Weight: 4.53 pounds
- Country of Origin: China
Interactive Figures & Robots
Kyanio FC9016 3 in 1 Remote/APP Control & Programming
$56.89
$48.36
- Specifications
- Brand: Kyanio
- Model: FC9016
- Product Dimensions: 12.6 x 8.6 x 2.1 inches
- Item Weight: 1.76 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 8 - 18 years
- Batteries: 1 Lithium Polymer batteries required. (included)
- Specifications
- Brand: Learning Resources
- Model: LER2935
- product_dimensions: 9.1 x 9.1 x 6.2 inches
- item_weight: 2.2 pounds
- country_of_origin: China
- manufacturer_recommended_age: 5 - 8 years
- batteries: 5 AAA batteries required.
- release_date: January 3, 2018
- department: Toys & Games
- Specifications
- Brand: GUANGDONG JIANJIAN INTELLIGENT TECHNOLOGY CO., LTD
- product_dimensions: 9 x 6.5 x 5.5 inches
- item_weight: 2.14 pounds
- country_of_origin: China
- manufacturer_recommended_age: 8 years and up
- batteries: 1 Lithium Ion batteries required. (included)
- Specifications
- Brand: VAV
- Model: BG1528
- Product Dimensions: 8.3 x 4.3 x 12.2 inches
- Item Weight: 0.141 ounces
- Country of Origin: China
- Manufacturer Recommended Age: 6 years and up
- Batteries: 1 Lithium Ion batteries required. (included)
Interactive Figures & Robots
Homesoft Robot Dog 2.4Ghz Remote Control with Music & Light
$39.99
$45.99
- Specifications
- Brand: Homesoft
- Model: Robot Dog
- Product Dimensions: 9.84 x 6.3 x 6.69 inches
- Item Weight: 1.9 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 6 years and up
- Batteries: 2 Lithium Ion batteries required. (included)
- Specifications
- Brand: Holy Stone
- Model: HS210
- Special Features: Toss to Launch, Circle Fly, 3D Flips, Auto Rotation, Speed Adjustability, Extended Flight Time with Three Batteries
- Age Range: Kid
- Connectivity Technology: USB
- Included Components: Spare Propellers x 4, Drone x1, Drone Battery x 3, Propellers Spanner x 1, USB Charger x 1, Screwdriver x 1
- Skill Level: Beginner
- Item Weight: 1.34 ounces
- Battery Capacity: 250 Milliamp Hours
- Remote Control Technology: 2.4GHz frequency remote control
- Maximum Range: 160 Feet
- Material: Plastic
- Battery Cell Composition: Lithium Polymer
- Product Dimensions: 3.15"L x 3.15"W x 1.18"H
- Specifications
- Brand: HASAKEE
- Model: Q9s
- Special Feature: Bright LEDs with Vibrant Neon Green & Blue Light, Multiple Glow Modes, 360 Degree Flips, Auto Rotation, High/Medium/Low Speeds, Four Protective Guards
- Color: Blue
- Video Capture Resolution: 720p
- Connectivity Technology: Wi-Fi
- Included Components: 2 Batteries, Remote Control, Propeller Guard
- Skill Level: Beginner
- Maximum Range: 0.03 Miles
- Material: Abs
- Battery Cell Composition: Lithium Ion
- Product Dimensions: 6.9"L x 6.9"W x 2"H
- Item Weight: 10.8 ounces
Interactive Figures & Robots
BIRANCO 8314A Interactive pup responds to remote & gesture
$39.96
- Specifications
- Brand: BIRANCO
- Model: 8314A
- product_dimensions: 8.27 x 4.72 x 7.87 inches
- item_weight: 1.2 pounds
- country_of_origin: China
- manufacturer_recommended_age: 3 years and up
- batteries: 1 Lithium Polymer batteries required. (included)
- Specifications
- Brand: STEMTRON
- Model: BG1538
- Product Dimensions: 6.69 x 3.54 x 10.24 inches
- Item Weight: 1.48 pounds
- Manufacturer Recommended Age: 3 years and up
- Batteries: 1 Lithium Ion batteries required. (included)
- Specifications
- Brand: Nsoela
- Model: DC403
- Age Range: Adult, Teens, Kids
- Built-in Media: 1x Digital Camera, 1x 32GB Memory Card, 1x Rechargeable Batteries, 1x Type C Cable, 1x USB Adapter, 1x Charging Stand, 1x User's Manual, 1x Strap, 1x Camera Bag
- Batteries Included: Yes
- External Memory Size: 32 GB
- Screen Size: 2.4 Inches
- Display Type: LCD
- Memory Storage Capacity: 32 GB
- Effective Still Resolution: 44 MP
- Digital Zoom: 16 x
- Video Resolution: 1080p
- Battery Type: Lithium Ion
- Color: Pink
- Specifications
- Brand: HAONIU
- Model: HAONIU-KC48
- Age Range: 3-12 years
- Screen Size: 2.0 inch
- Display Type: AMOLED
- Resolution: 48 MP
- Video Resolution: 1080p
- Memory Storage Capacity: 32 GB
- Battery Type: Lithium Metal
- Special Features: Time Lapse, 3X Digital Zoom
Interactive Animal Companions
Spin Master 6067791 Digital pet you can touch and feel
$34.99
- Specifications
- Brand: Spin Master
- Model: 6067791
- product_dimensions: 4.75 x 4 x 3.63 inches
- item_weight: 8.6 ounces
- manufacturer_recommended_age: 5 years and up
- batteries: 3 AA batteries required. (included)
- release_date: October 13, 2024
- Specifications
- Brand: sepytia
- Model: K30
- Dimensions: 15.3in*4.7in*8.6in
- Battery: Rechargeable lithium battery
- Age Range: 4+
Interactive Figures & Robots
Deformation Robot Action Figure Converts between robot and truck models
$32.99
$34.99
- Specifications
- Brand: Asoucou
- product_dimensions: 8.6 x 7.6 x 3.5 inches
- item_weight: 11.3 ounces
- manufacturer_recommended_age: 3 years and up
- Specifications
- Brand: Fleafer
- Model: C15
- Age Range: Kid, Teen
- Built-in Media: Camera Body & Accessories
- Batteries Included: Yes
- External Memory Size: 32 GB
- Connectivity Technology: USB
- Video Output: HDMI
- Screen Size: 2.8 Inches
- Display Type: LCD
- Display Resolution Maximum: 56 MP
- Optical Zoom: 16 x
- Digital Zoom: 16 x
- Video Resolution: 1080p
- Battery Type: 2 AA (Lithium Ion)
- Number of Batteries: 2 AA batteries required. (included)
- Color: Black
- Specifications
- Brand: Pebble Books
- Publisher: Pebble Books (August 1, 2022)
- Language: English
- Hardcover: 24 pages
- ISBN-10: 166635029X
- ISBN-13: 978-1666350296
- Reading Age: 4 - 8 years
- Lexile Measure: 510L
- Grade Level: 1 - 2
- Item Weight: 2.31 pounds
- Dimensions: 8.25 x 0.5 x 8.25 inches
- Customer Reviews: 5 stars (3 ratings)
- Specifications
- Brand: ZUODUN
- Model: KSW-2
- Product Dimensions: 9.65 x 1.57 x 0.1 inches
- Item Weight: 4.2 ounces
- Manufacturer Recommended Age: 3 - 13 years
- Batteries: 1 Lithium Polymer batteries required. (included)
- Specifications
- Brand: Tecnock
- Model: D8908
- Product Dimensions: 8.27 x 2.28 x 5.31 inches
- Item Weight: 1.58 pounds
- Manufacturer Recommended Age: 8 years and up
- Batteries: 3 Lithium Ion batteries required. (included)
- Specifications
- Brand: KingsDragon
- Model: 917
- Product Dimensions: 6.3 x 3.3 x 10.4 inches
- Item Weight: 1.15 pounds
- Manufacturer Recommended Age: 3 years and up
- Batteries: 1 Lithium Polymer batteries required. (included)
- Customer Reviews: 6167 ratings, 4.5 stars
- Material: ABS
- Charging Time: 2 hours
- Playing Time: 3-4 hours after fully charged
- Control Distance: About 24ft
- Battery of Robot: 3.7V 600mAh
- Battery of Remote Control: 2 x 1.5V AA (not included)
Interactive Figures & Robots
Shantou Globalwin Intelligent Technology Co.,Ltd. 11638 Smart Gesture Control
$26.99
- Specifications
- Brand: Shantou Globalwin Intelligent Technology Co.,Ltd.
- Model: 11638
- Product Dimensions: 3.6 x 5.5 x 4.7 inches
- Item Weight: 1.05 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 6 - 12 years
- Batteries: 1 Lithium Ion batteries required. (included)
- Specifications
- Brand: flybakiz
- Model: RS063-1
- Product Dimensions: 3.82 x 8.78 x 10.83 inches
- Item Weight: 1.48 pounds
- Country of Origin: China
- Manufacturer Recommended Age: 3 - 20 years
- Batteries: 1 Lithium Ion batteries required. (included)
- Specifications
- Brand: BeiyoQSZ
- Model: E88
- Color: BLACK
- Video Capture Resolution: 1080p
- Connectivity Technology: Wi-Fi
- Included Components: Battery
- Video Capture Format: MP4
- Control Type: Gesture Control
- Material: Plastic
- Wireless Communication Technology: Bluetooth
- Battery Cell Composition: Lithium Ion
- Are Batteries Included: Yes
- Optical Sensor Technology: CMOS
- Rechargeable Battery Included: Yes
- Product Dimensions: 6.7"L x 17.5"W x 8.5"H
- Item Weight: 13.7 ounces
- Country of Origin: China
- Batteries: 2 Lithium Ion batteries required. (included)
- Specifications
- Brand: eKids
- Model: PK-533
- Screen Size: 2 Inches
- Resolution: 2 MP
- Video Resolution: 720p
- Memory Storage Capacity: 512 MB
- Battery Type: 3 AA batteries
- Connectivity: USB
- Specifications
- Brand: eKids
- Model: SM-533
- age_range: Kid
- built_in_media: Wrist Strap, SD Card, Micro USB Cable
- external_memory_size: 512 MB
- screen_size: 2 Inches
- photo_sensor_resolution: 1.95 MP
- video_resolution: 1080p
- special_feature: Decorate images with pre-loaded Spiderman stickers, Kid-friendly video recording controls
- Specifications
- Brand: eKids
- Model: BU-533
- Age Range: Kid
- Screen Size: 2 Inches
- Memory Storage Capacity: 0.5 GB
- Video Resolution: 720p
- Battery Type: Alkaline
- Special Features: Built-In Microphone, Digital Zoom, Built-In Games
Interactive Figures & Robots
ShanTou Shi ChengHai Qu ZhongYi WanJu ShiYe YouXian GongSi 610452787321 Intelligent Remote Control with gesture-sensing
$18.98
- Specifications
- Brand: ShanTou Shi ChengHai Qu ZhongYi WanJu ShiYe YouXian GongSi
- Model: 610452787321
- product_dimensions: 10 x 4 x 3 inches
- item_weight: 1.32 pounds
- manufacturer_recommended_age: 6 years and up
- charging_time: about 1 hour
- play_time: 2-3 hours at full power
- controller_battery: requires 2 * 1.5V, AAA batteries
- control_distance: 3-5 meters
Interactive Figures & Robots
ShanTou Shi ChengHai Qu ZhongYi WanJu ShiYe YouXian GongSi RC Robot Intelligent Remote Control with gesture-sensing
$18.98
$29.99
- Specifications
- Brand: ShanTou Shi ChengHai Qu ZhongYi WanJu ShiYe YouXian GongSi
- Model: RC Robot
- product_dimensions: 10 x 4 x 3 inches
- item_weight: 1.32 pounds
- manufacturer_recommended_age: 6 years and up
- control_distance: 3-5 meters
- charging_time: about 1 hour
- play_time: 2-3 hours at full power
Interactive Figures & Robots
Shantou Peirong Intelligent Technology Co., LTD 818 Gesture and remote control modes
$17.99
$35.99
- Specifications
- Brand: Shantou Peirong Intelligent Technology Co., LTD
- Model: 818
- Product Dimensions: 8.5 x 5.6 x 3.78 inches
- Item Weight: 1.08 pounds
- Manufacturer Recommended Age: 6 - 12 years
- Batteries: 2 AAA batteries required. (included)
- Specifications
- Brand: Force1
- Model: RC131-3
- Product Dimensions: 4.53 x 4.53 x 1.97 inches
- Item Weight: 10.2 ounces
- Country of Origin: China
- Manufacturer Recommended Age: 8 years and up
- Batteries: 2 Lithium Polymer batteries required. (included)
- Customer Reviews: 643 ratings, 4.2 stars
- Special Features: LED Target Shooting game, Obstacle avoidance
- Nonstop Flight Time: 6 Minutes
- Specifications
- Brand: Tcvents
- Model: flying robot-yellow
- Special Feature: Rechargeable
- Age Range: Kid, Adult
- Skill Level: All
- Control Type: Remote Control
- Material: Plastic
- Battery Cell Composition: Lithium
- Batteries Included: Yes
- Remote Control Included: Yes
- Rechargeable Battery Included: Yes
- Product Dimensions: 7"L x 5.5"W x 1.6"H
- Item Weight: 5.3 ounces
Interactive Figures & Robots
SEFCVTC SQN-018 Unique two-part design with LED eyes
$16.99
- Specifications
- Brand: SEFCVTC
- Model: SQN-018
- product_dimensions: 4.72 x 3.54 x 4.72 inches
- item_weight: 14.4 ounces
- manufacturer_recommended_age: 6 years and up
- batteries: 2 AAA batteries required. (included)
- Specifications
- Brand: Ynybusi
- Model: flying robot 2023
- Item Weight: 5 ounces
- Product Dimensions: 1 x 1 x 1 inches
- Country of Origin: China
- Batteries: 1 Lithium Ion batteries required. (included)
- Manufacturer Part Number: flying toys2023
- Special Features: Portable
- Lift Type: manual
- Specifications
- Brand: DK Children
- publisher: DK Children
- publication_date: September 18, 2018
- edition: Illustrated
- language: English
- print_length: 160 pages
- isbn_10: 1465475842
- isbn_13: 978-1465475848
- item_weight: 2 pounds
- reading_age: 9 - 12 years
- dimensions: 8.81 x 0.64 x 11.19 inches
- grade_level: 4 - 7
- lexile_measure: IG1160L
- Specifications
- Brand: ZURU
- Model: 7199D
- product_dimensions: 2.76 x 2.76 x 2.76 inches
- item_weight: 1.76 ounces
- country_of_origin: China
- manufacturer_recommended_age: 36 months - 10 years
- batteries: 2 LR44 batteries required.
- release_date: January 1, 2023
- Specifications
- Brand: BYIUA
- Model: JYX2075
- Age Range: 36 months - 12 years
- Color: Gold
- Included Components: Toy Parachute Figures
- Skill Level: Beginner
- Remote Control Technology: IR
- Control Type: Hand Control
- Material: Plastic
- Wireless Communication Technology: Infrared
- Battery Cell Composition: Lithium Ion
- Batteries Included: Yes
- Remote Control Included: Yes
- Optical Sensor Technology: infrared
- Rechargeable Battery Included: Yes
- Product Dimensions: 4.98"L x 1"W x 6"H
- Item Weight: 3.52 ounces
- Country of Origin: China
Interactive Figures & Robots
Robots: A New Age of Bionics, Drones & Artificial Intelligence Book
$13.77
$14.98
- Specifications
- Brand: Popular Mechanics
- publisher: Hearst (September 1, 2015)
- language: English
- hardcover: 144 pages
- isbn_10: 9781618371683
- isbn_13: 978-1618371683
- item_weight: 1 pounds
- dimensions: 7 x 1 x 9 inches
- customer_reviews: ratings_count: 11, stars: 4.2
- Specifications
- Brand: Dolanus
- Model: 278
- product_dimensions: 9.6 x 4.9 x 2.7 inches
- item_weight: 13.7 ounces
- country_of_origin: China
- manufacturer_recommended_age: 36 months - 12 years
- Specifications
- Brand: First Second
- Publisher: First Second (March 27, 2018)
- Language: English
- Paperback: 128 pages
- ISBN-10: 1626727929
- ISBN-13: 978-1626727922
- Reading Age: 9 - 13 years
- Lexile Measure: GN640L
- Grade Level: 4 - 6
- Item Weight: 8.8 ounces
- Dimensions: 6 x 0.3 x 8.5 inches
- Specifications
- Brand: DANONI
- Model: 8820
- Product Dimensions: 1.77 x 1.77 x 5.4 inches
- Manufacturer Recommended Age: 3 years and up
- Specifications
- Brand: Lerner ™
- publisher: Lerner Publications ™ (January 1, 2025)
- language: English
- paperback: 32 pages
- isbn_13: 979-8765662243
- reading_age: 7 - 11 years
- lexile_measure: 830
- grade_level: 2 - 5
- item_weight: 2.72 ounces
- dimensions: 6.38 x 0.08 x 8.74 inches
- Specifications
- Brand: Little Golden Book
- Illustrator: Bob Staake
- Age Range: Preschool
- Specifications
- Brand: National Geographic Kids
- publisher: National Geographic Kids
- publication_date: April 8, 2014
- edition: Illustrated
- language: English
- print_length: 48 pages
- isbn_10: 9781426313448
- isbn_13: 978-1426313448
- item_weight: 3.99 ounces
- reading_age: 4 - 7 years, from customers
- dimensions: 6 x 0.13 x 9 inches
- part_of_series: Readers
- grade_level: 1 - 3
- lexile_measure: 840L