Portable Mini Bracelet Power Bank

Features:
Four-level LED power indication, running light charge indication.
1 minute off function without load to save energy.
Low voltage alarm, allowing users to charge in time, using polymer lithium ion batteries, environmental protection, safety, non-toxic.
With short circuit, over current, over discharge, over charge and other intelligent protection circuits.
The maximum charging current can reach 500 mA, which can be adjusted to work according to different mobile phones, digital products or different battery quality.
Support for most mobile phone, MP3, MP3，MP4，P-S-P，NDS etc.