... 100-240V 2 Output: DC 2.8-8.7V 250mA 4 in 1 USB Universal Charger for Car and Li-ion batterySpecifications ... good and its speed is fast.3 be applicable to multi-cellular phones of items4 manufacturing of outline can according to ... , over current protection, over-voltage protection, overload protection, constant pressure function, ect.2 Small volume, light weight, easy to carry3 high ...