Specification
Keypad Transmitter:
Dimension:282x160x37mm
Power supply: DC12V 2A
Distance: 1000m in open area(in theory)
Coaster Pager:
Dimension: 106x53x9mm
Li-polymer: 3.7V 200mAh
Standby time: about 3 hours
Voice Speaker:
keyboard adapter: DC 9V/1A
Dimension for transmitter :130*87*23mm
Black caller adapter: AC220V/DC12V 2A
Dimension for caller: 265*235*65mm