Two sends, one receiver
Frequency: 433.92 MHz
Antenna transmiter: integral
Antenna receiver: integral
Power supply for door transmitter: 9V DC(battery)
Power supply for pet transmitter: 12V DC(battery)
Power supply receiver: 4.5V DC(battery)
Modulation: A1D
Transmission mode: simplex
Channels: about 40
Remote distance: 30M
Double dingdong,west Minister, 12 melodies, etc,
QTY: 24PCS/CTN
G.W./N.W.: 12.5*11KGS
MAES: 52.5*36*27 CM
20'/40': 13,392PCS/26,784PCS