Description [Improve the quality of life B30] is not only a video doorbell, but also a new way of life. With the help of powerful low-power chipset, it can achieve more realistic visual effects. Streamlined appearance and industrial physical buttons will bring you the best sensory experience. You can reactivate the doorbell via WIFI anytime, anywhere. [Easy Installation] Using low power consumption technology and battery power, it can be installed without wiring. Under low power consumption mode, the working time can exceed 6 months and the standby time can exceed one year and zero. Half. [Low Power Consumption] In ultra-low power consumption mode, it is powered by battery. In this mode, the working time of this doorbell is more than 6 months, and the standby time is about six months. [Support WIFI connection] You can easily connect the mobile app to the device. Even if the WIFI connection is established outside or through the wall, the device connection is reliable, the transmission is reliable, and the signal is strong [Video feedback] You can talk to visitors anytime and anywhere place and transmit video or voice more clearly with noise reduction and rate matching technology.