Odeon Slim Power Bank - 4,000mAhwhether youre in the office or on the go, keep your mobile device fully charged with our omega brite 4000mah power bank, available in 8 vibrant colours. featuring led remaining battery capacity indicators and 2 usb ports, it can charge both your smartphone and tablet simultaneously. 12. 3 ( l ) x 6. 8 ( w ) x 1 ( h )cm lithium polymer battery capacity: 4,000mah micro input: 5w (max): 5v 1a usb a output 1: 10w (max): 5v 2a usb a output 2: 5w (max): 5v