Features: * One Switch But Three Actions: Customize your smart home with various button actions to control more devices by single press, double press or long press. * One Action Controls A Group of Devices: Control blinds with 4CHPROR2 4-gang smart switch. You can turn on 4 lights at the same time by single tapping. * Control A Light at Two Locations: Support two-way control. Connect the button with smart wall switches and it can turn off the light downstairs after you go upstairs. * Low-battery Notification: You will get a notification of low-battery level when the battery life gets 10% remaining. * Handy Button, Handy Control: Engineered to a small unit and you can take it to any corner of your home for easy control. Specifications: Model: SNZB-01 Battery: 3V CR2450 (included) Wireless protocol: Zigbee (IEEE 802.15.4) Working environment: -10C~40C Material: PC Item Weight: 25g Item Size: 43*43*16mm Package Information: Package Size: Approx. 5*5*2cm/1.97*1.97*0.79in Package Weight: Approx. 30g/1.06oz Packing List: 1 * Zigbee Wireless Switch