Kensington 33442 Mini Battery Pack and Charger for iPhone and iPod

The rechargeable Kensington Mini Battery Pack and Charger for iPhone and iPod has the power you need to keep the conversations and Music going. Extends play time up to 30 hours of music, 6 hours of video, and 3 hours of talk time High-capacity, rechargeable Lithium-Ion polymer battery pack for increased energy efficiency