With the ReTrak 4,000 mAh Powerbank with Retractable Micro USB Cable, you never have to leave the house without a charge again. It works with all USB devices and fits in your pocket so you can easily carry it on the go. It stores two full smartphone charges to keep you going through the day.
- Li-Ion battery
- Compact design for maximum portability
- USB output for charging any device
- Built-in overcurrent & short circuit protection
- LED charging indicator light
- Automatic on/off function