1. Quick Calling: When there is emergency, just push the call button, and the alert message immediately send to the receiver.<br> 2. Stable Signal: The working range can get up to 1000 meters in an open area, making sure that you never loss a call in night.<br> 3. Alerting Mode: Has 3 kinds of alarming modes, flashing and vibration, flashing and buzzer, flashing and vibration and buzzer.<br> 4. Extensive Use: Can be widely applied in home, nursing home, hospital and so on, suits perfectly for the elderly, patient, etc.<br> 5. Easy Carrying: Comes with a light weight and a compact size as well, perfect for both indoor and outdoor, safeguarding the .<br> Item Type: Caregiver Pager<br> Watch Receiver Parameter:<br> Operating Frequency 433.92MHz<br> Charging Voltage: DC5V<br> Working Voltage: DC3.7V<br> Lithium Battery Model: 602030<br> Battery Capacity: 300mAh, included.<br> Working Current: 100±20mA in vibration and buzzer mode, 75±10mA in vibration mode.<br> Standby Current: 10±5mA<br> Receive Sensitivity: -107±2dBm<br> Decoding: Learning Coding<br> Waterproof Grade: IPX7<br> Working Temperature: -20℃~ 60℃<br> Button Launcher Parameter:<br> Operating Frequency 433.92MHz<br> Battery Type: 1 x 23A12V battery.<br> Battery Capacity: 80mAh, included.<br> Emission Current: 10mA±3mA<br> Standby Current: Less than 1uA<br> Open Distance: . 1000m / 3280.84ft<br> Keystrokes: 1000,000 times<br> Waterproof Grade: IPX4<br> Working Temperature: -20℃ ~ 55℃<br> Single Key: Call<br> Note: Due to different production batches, there may be slight differences in products.<br> Colour:Black<br> Material:ABS<br> Package Contents:<br> 1 x Receiver<br> 1 x Button<br> 1 x Charging Cable<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.