Description: Features: brand new and high quality. Fashion aluminum alloy for shell, good for touch feeling & shows your good taste. Easy to use and secure. Can be used as battery power bank AA batteries (Ni-MH battery is rechargeable). Function: power bank and 4pcs AA battery Power supply Output voltage is 5V-6V, can not charge for mobile phone but charge for other 5V USB interface device like bicycle light, USB fan, USB light, etc. Plug and for Play, power output using the USB port, plug the data cable to achieve portable, ready to charge. Specifications: Item Type: Battery Charger Box Material: Aluminum Alloy + ABS Color: Red,Black Size: 3.23.27.5cm/1.261.262.95in (Approx.) Cable length: 36cm/14.17in (Approx.) Cable connector: USB Type A female Output voltage: for DC 5V-6V Battery: 4pcs* AA battery (Not included) Quantity: 1PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you 4.No retail package Package includes: 1 X AA Battery Box(other accessories demo in the picture is not included)