1. Loud sound, high sensitivity, long distance and strong function
2. The sound is shocking, the operation is simple, and the plug-in is ready to use
3. Number of game subs: 998
4. Use occasions: restaurants, hotels, Internet cafes, hospitals, milk tea shops, churches, etc.
5. Long-distance coverage, up to 1000 meters
6. Battery capacity: 1000mah
7. Power supply mode: USB charging / built-in lithium battery
8. Prompt mode: vibration, buzzer, prompt light
9. Reminder duration: 30 seconds
10. Input voltage: 5V / 12V
11. Input current: 2A
12. Working voltage: 3.7V 300MAH
13. Receive/transmit frequency: 433.92MHz
14. Standby current: less than 12mA
15. Standby time: 10 hours
16. Receive sensitivity: -115DB
17. Product list: host, power cord, adapter, pager, charging base
18. Size: 11x16.5x5cm