Fitory 2in1 Power Bank is made of plastc with 2000mAh battery capacity. Keychain design make it easy to carry for emergency charge. The telescopic a iso interface out put let you charge your cell phone without a cable. It can charge your phone and iWatch at the same time.Never have to worry about your phone/iWatch running out of battery on the go. Custom logo is available. Input: 5V / 2.1A Output: 5V / 2.1A iWathch Wireless Output: 3W