Model No.:K-500 Plus
Can work with 500pcs 1-key and multi-key buttons.
Fast rechargeable and long life battery.
Indicate different service type via words.(call;bill;drink;etc).
3 reminder modes:: Light, Sound, Vibration.
Record when call come in and count of call.
Can store 50 calls and track the history.
Size Dimensions : 50*41*16mm