idea: Keep on talking, keep on rocking.
The rechargeable Kensington Mini Battery Pack and Charger for iPhone and iPod has the power you need to keep the conversations and music going.
Compatible to iPhone 4, 4s,3g, iPod Touch 2nd generation
Review Video :
Power and charge your iPhone or iPod
Extends play time up to 30 hours of music*; 6 hours of video*; 3 hours of talk**
Includes retractable USB charging cable to recharge battery pack
High-capacity, rechargeable lithium-ion polymer battery pack for increased energy efficiency
Small enough to keep connected to your iPhone or iPod
LED battery meter displays remaining power level
Cap can be used as kickstand to prop up your iPhone or iPod in portrait or landscape orientation
Weight 0.10 lbs.
Battery Pack dimensions 2.38"L X 0.38"H X 1.69"W