This product is suitable for home, hotel, hospital ect;
Sound category: Single Dingdong, Double Dingdong,12 songs,
Sender : DC 6F22 9V; receiver: 2pcs AA batteries;
Frequency: 433.92MHz
Remote Control Distance: about 30M
Use digital codes to avoid interference
One sender can control one or more receivers
Long distance remote control, convenient for life | |||||