Joyroom 3.8V 2300mAh Battery Charger Cases For iPhone 7 External Battery Case Cover Backup Portable PowerBank Rechargeable Black

Function: Power Case
Battery Capacity: 2000-4999mAh
Brand Name: Joyroom
Compatible iPhone Model: iphone 7
Compatible Brand: Apple iPhones
Material: Plastic
Size: 7.5 x 0.4 x 4.3 inches
Weight: 2.7 ounces
Battery type: Li-polymer
Capacity: 3.8V/2300mAh
Input: 5V / 1A (Max)
Output: 5V / 1A(Max)
Function 1: battery case
Function 2: powerbank
Function 3: battery case for iphone
Function 4: poverbank