Wireless scene switch: By gradually upgrading switch devices in your home, you can gradually create a smarter and more convenient home environment Create smart scenes in Tuya Smart APP: Turn your daily work into a seamless experience Create multiple smart scene links: With just one click, you can control multiple devices at same time and enjoy a truly connected life experience Compact size, wide application: put it anywhere at , or just on wall with 3 Meter adhesive, no complicated installation required Button:a button Working voltage:3V Wireless protocol:Zigbee 3.0 Indicator light:red indicator light Standby current:≤10uA Battery Type:CR2032 CR2032 Standby time:≥12 months Working temperature:-10℃-55℃ Working humidity:0%-99%RH Product size:Ф50x13mm (The product appearance and printed words depending on batch, but this does not affect use) Color: White Material: PC flame retardant Package Contents: 1 * Smart Knob Switch Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.