1. With light indicator display.
2. Shaking function. Shake to start charging.
3. Use lithium polymer battery make power bank thinnest.
4. Compatible for any phone, tablet, MP3, MP4, PSP, GPS, game device, camera and many more (just connect with your USB cable).
5. Intelligent voltage recognition chip automatically detects the voltage.
6. Built in battery protection IC to prevent over charging, over discharging and short circuit.