Low power consumption, environmental protection and energy-saving design, low power consumption, only 11 AA batteries, 3 batteries for each of three receivers, and 1 battery for each of the two transmitters. It can be used for 3-5 months, without potential safety hazards, no fever, safety and confidence, and is suitable for various environments, and it will not affect the use in rainstorm and typhoon days
Convenient installation, good doorbell, no damage to the wall, high-quality double-sided adhesive tape, one touch, one tear, one buckle, can complete the installation, stable and firm, no damage to the wall, can also support the installation with screws