Thames & Kosmos 620398 Sound-Sensing Robot STEM Experiment Kit: Build-it-yourself robot with high-tech, screen-free play
Get ready to meet Hero, your new six-legged robot buddy who's all ears—literally! With over 100 parts to tinker with, you're not just building a robot; you're diving headfirst into the cool world of engineering and sound tech. And guess what? Hero's got three super-sensitive microphones that pick up everything from your claps to your favorite tunes (yes, even that off-key singing). Control it with snaps, claps, or the quirky castanet included in the box. Whether you're leading Hero on a follow-the-leader adventure, syncing moves for a dance-off, or battling it out in tug-of-war, this bot's got four play modes to keep the fun rolling. Oh, and its design? Sleek. Those arms tuck away neatly, and that giant, glowing eye can give you some serious side-eye or a cheerful wink. The 52-page manual isn't just instructions—it's a comic-book journey starring none other than your mechanical pal. Hours of play? More like days of 'just one more experiment!'
Features
- Advanced design with 2 motors and 3 microphones
- Hands-on assembly develops fine motor skills
- Four unique play modes for engaging lessons
- Removable stickers for unique personality
- 2025 Tech Toy of the Year Finalist
- 2024 Toy Insider Top Holiday Toy
- Build-it-yourself robot with high-tech, screen-free play
General specs
- Brand: Thames & Kosmos
- Model: 620398
- Seller: Amazon
- ID: B0CRJNNQDF
- product_dimensions: 10 x 4.7 x 11 inches
- item_weight: 1.6 pounds
- country_of_origin: Taiwan
- manufacturer_recommended_age: 8 years and up
- release_date: May 10, 2024
- First listed by seller: 4/3/25
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Amazon
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Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
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Thames & Kosmos 620398
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Thames & Kosmos 620501
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Kyanio BC0103 STEM robotic building kit
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DOLIVE 025107 3-IN-1 STEM BUILDING KIT
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VOPOGLNE 96165
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Opmind 8030
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| Brand | Thames & Kosmos | Thames & Kosmos | Kyanio | DOLIVE | VOPOGLNE | Opmind |
| Model | 620398 | 620501 | BC0103 | 025107 | 96165 | 8030 |
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| Price | $39.99 | $44.95 | $51.98 | $49.99 | $43.99 | $69.97 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 6, 2025 | December 6, 2025 | November 9, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 |
| product_dimensions | 10 x 4.7 x 11 inches | 10 x 4.75 x 11 inches | 12.9 x 8 x 4.9 inches | 10 x 9 x 1.8 inches | 9.5 x 2.55 x 12 inches | |
| item_weight | 1.6 pounds | 1.8 pounds | 2.1 pounds | 2 pounds | 2.25 pounds | |
| country_of_origin | Taiwan | Taiwan | China | China | China | |
| manufacturer_recommended_age | 8 years and up | 7 years and up | 8 - 18 years | 6 - 15 years | 6 years and up | |
| batteries | 4 AAA batteries required. | 2 AA batteries required. | 1 Lithium Ion batteries required. (included) | |||