YoLink YS1603-UC + YS3604-UC 4-Button Smart Fob with Hub: LoRa-powered wireless technology for over 1/4 mile range
For the smart home enthusiast who wants control at their fingertips, the FlexFob simplifies daily routines with a single press. Imagine using it to arm your security system as you leave for work or trigger a "goodnight" scene that locks doors and dims lights—all without pulling out your phone.
This isn't just another remote; it's a hub-included tool for seamless living. The LoRa technology ensures it works from your backyard to your neighbor's house, so you never lose connection. One user noted the battery lasted through a full year of daily use, making it reliably always ready. With Alexa and IFTTT compatibility, each button adapts to your life, turning complex automations into effortless actions.
Features
- Four smart buttons with up to two functions each
- Activates Alexa routines with configurable buttons
- Activates IFTTT applets with configurable buttons
- Controls YoLink devices like sirens, locks, and lights
- Up to 1 year battery life due to low power consumption
- LoRa-powered wireless technology for over 1/4 mile range
General specs
- Brand: YoLink
- Model: YS1603-UC + YS3604-UC
- Seller: Amazon
- ID: B0BJK75MDL
- Brand: YoLink
- Range: over 1/4 mile
- Weight: 0.61949895622 pounds
- BatteryLife: up to 1 year
- ButtonCount: 4
- DeviceTypes: sirens, locks, lights
- HubIncluded: Yes
- Compatibility: Alexa, IFTTT
- NumberOfItems: 1
- TotalFunctions: 8
- PowerConsumption: extremely low
- FunctionsPerButton: 2
- WirelessTechnology: LoRa
- ControlCapabilities: set scenes, arm security, control YoLink devices
- First listed by seller: 2/2/26
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
United States
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Sonoff SNZB-01M Flexible smart scene trigger with 16 actions
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| Brand | YoLink | Amazon Basics | YSRSAI | IHSENO | IHSENO | Sonoff |
| Model | YS1603-UC + YS3604-UC | HCR-Z54C-B-A667-01 | YSR-Z-4K | Remote | Remote2 | SNZB-01M |
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| Price | $49.99 | $19.99 | $23.95 | $16.99 | $16.99 | $19.90 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | February 4, 2026 | January 21, 2026 | February 4, 2026 | January 16, 2026 | February 4, 2026 | February 4, 2026 |
| Brand | YoLink | Amazon Basics | YSRSAI | IHSENO | ||
| Weight | 0.61949895622 pounds | 0.065 pounds | 100.0 | |||
| Compatibility | Alexa, IFTTT | Echo devices, Alexa | Tuya, Home Assistant, Homey, Hubitat, Zigbee2MQTT | |||
| Width | 1.42 inches | 1.6 inches | 0.55 inches | |||
| Height | 0.46 inches | 0.6 inches | 1.96 inches | |||
| Length | 3.35 inches | 5.5 inches | 1.96 inches | |||