Waterproof One Button Pager， Can Matching Model D
Material: ABS
3V battery
Freequency: 433MHZ
1: logo can be customized.
2:Key words can be changed to call/pay/service/order/water/cancel/sweep/coffee/juice/positive/negative/medicine/sos/needle/doctor
3:Battery life time is arround one year, can be Replaced.
Catalogs for more options