Product information: 

Product parameters:
Size: 99 * 29 * 16mm
Product weight: 24g
Decibel: 130dB
Material: ABS
Battery: Polymer battery
Battery capacity: 3.7V 120mAh


Product Features:
1: Charging function: Using TYPE-C charging socket, the charging display shows a blue light, which turns off when fully charged.
2: Low voltage detection function: When the product voltage drops to 3V, the red light of the product flashes, reminding the user that the product needs to be charged in a timely manner,
2: Alarm function: Pull open the pull tab, the product will sound an alarm and flash the light. Insert the pull ring into the product, and the product will stop alarming and flashing lights.
3: LED light function: Press the side light button to keep the LED light on. Press the button again to make the LED light flash. Press the button once to turn off the light