With the 2-channel audio feature, you can respond in real time and speak directly to the other party.With the 2-channel audio feature, you can respond in real time and speak directly to the other party.With the 2-channel audio feature, you can respond in real time and speak directly to the other party. This wifi video doorbell adopts ultra-low power consumption technology and can work for more than 2-5 months in standby stateThis wifi video doorbell adopts ultra-low power consumption technology and can work for more than 2-5 months in standby stateThis wifi video doorbell adopts ultra-low power consumption technology and can work for more than 2-5 months in standby state 100% wireless use, no wiring is required when working, eliminating the trouble of cables and wiring problems100% wireless use, no wiring is required when working, eliminating the trouble of cables and wiring problems100% wireless use, no wiring is required when working, eliminating the trouble of cables and wiring problems 【The day and night intelligent passive infrared detection security camera with passive infrared detector will sound an alarm when it detects someone outside the door. (You can choose from low, medium, and high sensitivity within 15 feet) It's also equipped with a night vision sensor to ensure you stay comfortable day and night. 【IP65-Waterproof and Easy to Install】The video doorbell is made of high-quality materials and craftsmanship, and has passed the ip65 test to withstand rain and snow.【IP65-Waterproof and Easy to Install】The video doorbell is made of high-quality materials and craftsmanship, and has passed the ip65 test to withstand rain and snow.