Compact size, 73.5mm (L) x 52mm (W) x 23.5mm (H)
Built-in 5200mAh 18650 lithium battery
Input: micro USB (0.7A/1A at 5V DC smart charging)
Output: USB A port up to 2.1A maximum at 5V DC
Digital LED display to show battery level percentage and charging status
Battery level check button
Automatic power On/Off
Built-in overcharge/discharge protection
Supports most devices with USB charging port
Ideal for long flights, outdoor activities, or anytime your devices might run out of power