QC03 Wireless Meal Picker Restaurant Vibrating Bell Caller

1. Loud sound, high sensitivity, long distance and strong function2. The sound is shocking, the operation is simple, and the plug-in is ready to use3. Number of game subs: 9984. Use occasions: restaurants, hotels, Internet cafes, hospitals, milk tea shops, churches, etc.5. Long-distance coverage, up to 1000 meters6. Battery capacity: 1000mah7. Power supply mode: USB charging / built-in lithium battery8. Prompt mode: vibration, buzzer, prompt light9. Reminder duration: 30 seconds10. Input voltage: 5V / 12V11. Input current: 2A12. Working voltage: 3.7V 300MAH13. Receive/transmit frequency: 433.92MHz14. Standby current: less than 12mA15. Standby time: 10 hours16. Receive sensitivity: -115DB17. Product list: host, power cord, adapter, pager, charging base18. Size: 11x16.5x5cm