Frequency of Coaster
433.92MHZ
Shell material
high quality polycarbonate
Prompt mode
Vibration & Buzzer & Vibration + Buzzer
Power supply
Built-in 3.7V 360mAh rechargeable lithium battery
Charging base adapter
Input: AC 100-240V, 50/60Hz Output: DC 5V, 4A
Keypad Transmitter Material
ABS plastic
Transmitter distance
800-1000m (open area)
Adapter
AC 100-240V 50/60Hz