Whether you’re 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 ) 6.8 ( w ) x 1 ( h )  aluminium lithium-polymer batterymicro USB cablecapacity: 4000MAH input current: 5V/1Aoutput current:1: 5V/2.1Aoutput current:2: 5V/1A