Power Mate Plus Portable Backup Battery for iPhone 3GS/4/4S
How many times have you found yourself out and about with a dead phone? The Power Mate Plus provides you with hours of extra use for your iPhone 3GS/4/4S. Just charge it, put it in your bag and use when needed. Battery life will vary depending on device and usage. Designed in the USA!
Built-in Lithium-ion battery charges via USB to computer system or power adapter.
Charge Time: 3hrs
Weight: 3.2 ounces
Dimensions: 3.8 x 3.8 x 0.7 inches