Feature: Clear voice, small size

1,This product is being placed on the baby to sleep or a play room and adults in the other room and kitchen at its dynamic.

2,The monitoring :  This product is placed in the corridor, courtyards, aisle or the warehouse, but in the bedroom, and security at its dynamic. 3,The frequency of the normal broadcasting of radio can't accept it. The transmitter size is very small, the use of advanced fm receiving technology, will clear within 50 square meters to pick up the receiver is a sound,

4,Use two pcs AAA battery on the receiver and one pc 9V battery on transmitter