Pager service call with Call, Bill,and Cancel function. Suitable for school, factory, supermarket etc. Pager service call MMC-2610B3 with the function of CALL,BILL&CANCEL. This pager service call works with all MMcall host&display. It is suitable for school, factory, supermarket etc.Features:Weight: 0.05KGColor: BlackMaterial: ABS (the crust), sticker (the button)Power supply: AAA 3V ...