Model D Pager Watch， ABS+PC， 433MHz, 3.7V 400mA， L51*W41*H14mm，Waterproof

Material: ABS+PC
Freequency: 433MHZ
Battery:3.7V 400mA
1:watch can show 4 groups of messages at the same time on screen.
2: Watch is fully waterproof
3:one watch can match to 999 call buttons
4：Watch can be connected to kitchen chef with the help of a transmitter if needed.
5: Watch Key button is touched
6:Watch Charging time: in two hours
7:watch can show words(call/pay/service/order/water/cancel/sweep/coffee/juice/positive/negative/medicine/sos/needle/doctor.)