Wirelessly control your smart home: create various smart scenes and connect with any Tuya smart device you like Simplify your day with Tuya Smart Scenes: Create smart scenes in the Tuya Smart app to trigger routines Unlock smart ZigBee bulb control via remote mode: Enable smart control of ZigBee bulbs in remote mode Switch options in app: You can select knob buttons and knob switches in app for various scenarios Simplified intelligent control: scene mode and remote mode<br><br>button:1 button Working voltage:DC 3V Wireless protocol:Zigbee 3.0 wireless distance 100 meters (open space) Indicator light:1 Standby current:≤10uA Battery Type:CR2450 Standby time:≥12 months Working temperature:-10°C-55°C Working humidity:0%-99%RH Product size:Φ50x25mm (The product appearance and printed words depending on the batch, but this does not affect use) Color: White Material: PC flame retardant<br><br>Package Contents: 1 * Tuya Smart Knob Switch<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.