Portable battery charger with frost metal case. Charges cell phones, MP3 players, digital cameras, PDA's, and other game related items. Capacity: 3.7V/2000mAh (about 3~4 times than iPod and cell phone original battery). Input: Mini USB 5V/600mA. Output: USB 5V/600mA. Battery type: lithium-ion battery. Charge time: around 5 hours. Idle discharge: less than 200uA. Adaptor included: AM-002 (Motorola,MP3, MP4), AM-003 (Sony Ercsson), AM-023 (Sumsung), AM-020 (Nokia), AM-028 (old Nokia).