Power in your pocket.
Amp 4000 delivers instant power in a compact, ergonomic design. Recharge all of your mobile devices with a built-in USB port. Stay connected wherever you go with 4000mAh of battery power at your fingertips.
Up to 18 hours talk time1 built-in USB portPremium soft-touch finishBattery level indicator
Battery: 4000mAh Lithium PolymerMicro-USB Input: 5VDC, 1.0AUSB Output: 1.0A
Micro-USB charging cable Attachable lanyard