Features: 1.The watch receiver adopts radio frequency wireless technology, and the signal transmission is stable. 2.Comes with dot LCD screen, the information is clear at a glance, 30 pagers, 1 receiver, support the watch to call and modify according to the information. 3.The watch can only be equipped with 500 pagers at most, supports single or list display mode, accurate time display, vibration/buzzer prompt. 4.Use removable rechargeable battery, long standby time, charging circuit protection. 5.Suitable for homes, hotels, bars, restaurants, factories, workshops, tea houses, general clubs, bowling alleys, massage rooms, churches, casinos, country clubs, hospitals, healthy clubs, and offices. specification:Item Type: Paging System Watch Receiver: Working Frequency: 433.92MHz Battery Capacity: 400mah Working Current: 56mA10mA (buzzer mode) 9510 (vibration mode) Standby Current: 7mA0.2mA Receiving Sensitivity: -108dBm Decoding: Learning the code Waterproof Rating: IPX4 Working Temperature: -20~ 55 Button Transmitter: Working Frequency: 433.92MHz Material: ABS+PVC+Viscose Battery: DC6V (CR2032x2) Battery Capacity: 200mah Emission Current: 10mA3mA Standby Current: 200m Keys: 1 million times Waterproof Rating: IPX4 Working Temperature: -20~ 55 4 Buttons: Call, check out, place an order, cancel Watch (433MHz mobile wireless receiving host) How To Use: Technical Parameters Working Frequency: 433MHz/315MHz Working Voltage: Built-in 3.7V lithium battery Working Current: