Item Type: Police Shoulder Light_x005F_x000D_Material: ABS/stainless steel_x005F_x000D_US Plug USB Charger Voltage: 110-220v 50/60HZ_x005F_x000D_Flashing Frequency: 8HZ_x005F_x000D_Rated Voltage: 3.7 (vdc)_x005F_x000D_Power Supply: 1 x Polymer lithium battery (built-in), USB charging_x005F_x000D_Power Protection: Overcharge, overdischarge, overcurrent, short circuit_x005F_x000D_Power Capacity: 450 (mah)_x005F_x000D_Charging Time: 3-4 hours_x005F_x000D_Working Time: >11 hours (room temperature)_x005F_x000D_Charging Method: Constant current trickle_x005F_x000D_Working Mode: Red and blue alarm flashing, constant lighting_x005F_x000D_Purpose: Suitable for road administration, courts, urban management, high-speed duty personnel, environmental sanitation, security, outdoor activities and other personnel on the shoulders, so that people and vehicles walking forward and backward can see the red and blue flashing lights, so as to protect the personal safety of duty personnel effect 1Fast charging method is simple and convenient, user can use it for a long time. 2The shoulder light can be used as a toy, it can be used as a guardians sacred object, and it can also be used as a childs desire to become a policeman. 3With IP65 waterproof rating, even working in rain will not be affected in any way. 4Intelligent charging management chip can compatible with universal mobile phone chargers. 5This stainless steel shoulder clip can prevent rain from causing rust without worrying.1 xPolice Shoulder Light 1 x Charger 1 x User Manual If long press for more than three seconds, the LED light does not flicker, generally the circuit protection does not work, and it needs to be activated by charging.