QC03 Wireless Meal Picker Restaurant Vibrating Bell Caller Ulefone Power supply: 9V battery

Power supply: 9V battery

effectively reducing NO compound emissions

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timer function of street lights can be reset at night

QC03 Wireless Meal Picker Restaurant Vibrating Bell Caller Ulefone Power supply: 9V battery1. 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