Mini Wireless Doorbell Electronic Guest-Saluting

Mini Wireless Doorbell Electronic Guest-Saluting

1.Put in three pieces of AAA1.5V batteries, the power consumption of this doorbell is low so the batteries can be used for more than 2months,Install the electronic guestsaluting doorbell beside the door and Turn the switch automaticly when people come by.

2.Lihgt control distance is 3-7meters.It is advised to use it in the places where there is enough light