Overview SONOFF SNZB-01P is a small Zigbee wireless smart switch that can even fit in your pocket, with preset actions for single press,double press, and long press to control multiple devices. Compared with SNZB-01, SNZB-01P has improved design and performance. With a larger button area, 5 years battery life, external button, the battery is easier to install and replace. SNZB-01P can be placed wherever your need, or stick with 3M Adhesive and a metal plate on a flat surface anywhere, then create a smart scene, like turning off all devices with one lick. Two-way control is even available for you to turn on/off the light from two locations. Besides, The SNZB-01P can also be used as a doorbell when connected to the NSPanel Pro, you will be notified when visitors press the wireless switch. SNZB-01P is battery-operated, your mobile phone will receive a low-battery notification when the remaining battery level is low. SNZB-01P support checking 3 months' history. SNZB-01P can be placed wherever your need, or stuck with 3M Adhesive and a metal plate on a flat surface anywhere.