Best QI Power Bank

FUNCTIONS PARAMETERS
Item No.: B4A
Unit Size: 70*70*16.5mm
Color: Black
Weight: 200g
Input: Input: 5V/2A
Output: 5W 5V/1A
Capacity: 4500mAh
Efficiency: >80%
Transmission distance: 4-8mm
Standard: QI
Working Frequency: 110KHz-205KHz
Certificate: CE FCC and RoHS
FEATURES
Wireless Charger Power Bank 4000mAh
QI standard, compatible with >98% mobile