Feature:1. Fast charging method is simple and convenient, user can use it for a long time.2. The 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.3. With IP65 waterproof rating, even working in rain will not be affected in any way.4. Intelligent charging management chip can compatible with universal mobile phone chargers.5. This stainless steel shoulder clip can prevent rain from causing rust without worrying.Specification:Item Type: Police Shoulder LightMaterial: ABS/stainless steelUS Plug USB Charger Voltage: 110-220v 50/60HZFlashing Frequency: 8HZRated Voltage: 3.7 (vdc)Power Supply: 1 x Polymer lithium battery (built-in), USB chargingPower Protection: Overcharge, overdischarge, overcurrent, short circuitPower Capacity: 450 (mah)Charging Time: 3-4 hoursWorking Time: >11 hours (room temperature)Charging Method: Constant current trickleWorking Mode: Red and blue alarm flashing, constant lightingPurpose: 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.Package List:1 x Police Shoulder Light1 x Charger1 x User ManualNote: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.