1、Convenient Button: The features wrist watch design for easy carrying and use, with various prompts, including light flashing with vibration, sound, lighting flash with buzzer, lighting flash with vibration with buzzer. Low power consumption and long standby time. 2、Flexible Combination: One button can be paired with multiple receivers, or multiple buttons can be paired with one receiver, catering various combination needs. 3、Enhanced Performance: The wireless call system adopts RF wireless technology with 998 channels to choose from, adjustable learning codes for flexible use. 4、Versatile Usage: The watch pager call system is suitable for a wide range of places, including home, school, restaurant, etc., can be flexibly combined to meet different needs. 5、Long Lasting Battery: The wireless watch receiver comes with a rechargeable 300mAh battery for extended use. Button transmitter with 23A 12V battery with 60mAh capacity for stable performance. <br> Item Type: Wireless Call System <br> Receiver: <br> Working Frequency: 433.92MHz <br> Working Current: 100±20mA (Vibration + Buzzer Mode), 75±10mA (Vibration Mode) <br> Battery Capacity: 300mAh (Included) <br> Standby Current: 10±5mA <br> Reception Sensitivity: -107±2dBm <br> Decoding: Learning Code <br> Water Resistant Rating: IPX4 <br> Operating Temperature: -20℃~ 60℃ <br> Button Transmitter: <br> Working Frequency: 433.92MHz <br> Battery Type: 1Pc 23A 12V Battery <br> Battery Capacity: 60mAh (Included) <br> Transmitting Current: 10mA±3mA <br> Open Distance: Approx. 100 ~ 500m / 328.1 ~ 1640.4ft <br> Keystrokes :1 Million Times <br> Water Resistant Rating: IPX7 <br> Operating Temperature :-20℃~ 60℃ <br> Single Key: CALL <br> 1 x Watch Receiver <br> 1 x Watch Button Transmitter <br> 1 x User Manual <br> 1 x Charging Cable