It's called a Wrist Power Bank Battery Charger, and it holds 1500 mAh of charging juice right around your arm. It'll surely be enough to get you out of a pinch, and allow you to continue using your phone in an emergency. Perfect for use while traveling on a plane, bus, train, or in the car, or even at a sporting even, music festival, or just out and about. The wrist wrapped phone power bank has a single USB port on the side of the device that lets you plug in a tiny little cord that goes right to your phone in your hand.
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.
Specifications:
Battery material: polymer battery
Colour: Black
Capacity: 1500mAh / 5.55WH
Rated input: USB: 5V / 500A
Rated output: D C OUT1: 5.4 / 500mA
Operating temperature: -10 ℃ -50 ℃
Static power consumption: less than 50uA
Conversion efficiency> 85%
Appearance size: 258mm * 35mm
Package size: 270 * 45 * 40mm / 10.6 * 1.8 * 1.6in
Package weight: 80g / 2.8ounce
Package List:
1 * Bracelet Power Bank
1 * Mini USB Adapter Cable
1 * Mini USB Charging Cable