a. 7 months guarantee. b. All made in Taiwan. MOQ=50 pcs General specifications: ITEMS SPECIFICATIONS Battery cell Lithium Capacity 4400 mAh Output Voltage DC 5V Output Current 1.2A Charge time Approx. 5hr (Input Current 1A) Life cycle Over 500 times Operation temp. 0-50 Celsius Degree Dimension ( L) 76mm x (W) 67mm x (D) 26mm Weight 132g Accessory USB cable / connectors