◆ Andoer NP-FZ100 DC Coupler Dual USB Adapter Dummy Battery for Sony A7III A9 A7RIII A7SIII
Features:
Replacement for NP-FZ100 battery, 100% compatible.
Enable you to power cameras using FZ100 battery with USB power pack, so you can shoot for a long time without being interrupted by insufficient power supply.
Dual USB connector can connect to 2 power pack at the same time, provide stronger and stabler power for your camera.
Fully decoded, plug and use directly. 
Output: 5V 2.1A.
Specifications:
Package Size: 11 * 10.5 * 1.5cm / 4.3 * 4.1 * 0.6inch
Package Weight: 82g / 2.9oz
Package List:
1 * DC Coupler
1 * USB Cable