Feature:1. RF WIRELESS TECHNOLOGY: Wireless calling pager system adopts RF wireless technology, accurate transmission, strong anti interference, fast transmission, easy to penetrate the wall, long distance.2. WATERPROOF: The waterproof rating of the watch receiver is IPX7, and the waterproof rating of the button transmitter is IPX4. It does not need to be removed during daily exercise, rainy day or even when washing hands, to ensure long term use, reliable and lasting.3. WIDELY APPLIED: Wireless calling pager system is suitable for elderly care, emergency call function, safe and reliable. Also suitable for hotels, clubs, bathhouses, babysitters and so on.4. 4 CHANNELS: Wireless calling system supports 4 channels, which can be freely combined and flexibly applied to meet different needs. One to one wireless caller system, 1 watch and 1 touch bell.5. ULTRA LONG STANDBY: Wireless calling pager system has ultra long standby time, rechargeable battery, low power consumption design, lasting.Specification:Item Type: Wireless Calling Pager SystemMaterial: ABSWatch Receiver Parameters:Operating Frequency: 433.92MHzCharging Voltage: DC5VBattery Type: Lithium BatteryBattery Capacity: 300mah(Included)Operating Current:10020mA(Vibration, Buzzer Mode)7510mA(Vibration Mode)Standby Current:105mAReceiving Sensitivity:-1072dBmDecoding: Learning CodeWaterproof Rating: IPX7Operating Temperature:-20~ 60Pushbutton Transmitter Parameters:Operating Frequency: 433.92MHzBattery Type: CR2032x2Press Lithium Battery Capacity: 240mAh (Included)Transmit Current: 10mA3mAStandby Current: <1uAOpen Distance: >Approx. 100m / 328.1ftKeystroke: 1,000,000 TimesWaterproof Grade: IPX4Operating Temperature:-20~ 55Single Key: Call.Package List:1 x Watch Receiver1 x Calling Transmitter 1 x Charging Cable1 x User Manual