Features:
Works both as an external emergency battery and a protective cover.
Reserved camera hole for easy shooting with the power bank case on.
Foldable stand for propping up your beloved phone easily.
Back case design for easy installation and removal.
Ultrathin design and perfect dimensions.
Super lightweight and convenient to carry.

Specifications:
Input: 5V 0.5A
Output: 5V 0.5A
Cell type: Polymer lithium battery
Capacity: 4200mAh
Cycle life: 500 times
Operating temperature: -10 - +45 Celsius Degree
Charging time: about 1.5h
Color: White,Black
Material: ABS
Product size: Approx. 16.3 * 8.3 * 1.7cm / 6.42 * 3.27 * 0.67in (L * W * Max. T)
Product weight: Approx. 111g / 3.91oz
Package size: Approx. 17.2 * 9.4 * 3.5cm / 6.77 * 3.7 * 1.38in (L * W * T)
Package weight: Approx. 201g / 7.08oz

How to use:
1. Slide your phone into the backup battery cover and make sure that your phone is well connected to the male micro USB dock connector on the power bank case.
2. Press the ON/OFF switch for long time(3-5 seconds) to activate(or to stop) charging, and confirm the charging signal on your phone.
3. Press the ON/OFF button once to check how many battery capacities are left.
(1LED: ≤25%, 2LED: ≤50%, 3LED: ≤75%, 4LED: ＞100%)

Package includes:
1 * Power bank case(Accessory ONLY, phone not included)
1 * English user manual