Features:
Works with devices that use batteries for Sony NP-FW50. 
Compatible camera models are:
For Sony NEX-3 series, NEX-5N/5R/5C/5T series, NEX-6 series, NEX-7 series; 
For Sony a7 series (Alpha a7, a7R, ILCE7/B, ILCE7K/B, ILCE7R/B, ILCE-7, ILCE-7R); 
For Sony A33, A35, A37, A55; For Sony a5000, a5100, a6000, a6300; For Sony RX10 series.
The power supply mode is optional: Connect it to USB converter cable and power bank, then you can shoot long time; If you connect it to the AC adapter indoor, it will be the best choice for long time photography or videography for both studio and home shooting.
In order to make your camera work regularly, please make sure your power supply output is 7.6V~9V. (AC adapter / USB converter cable needs to be purchased separately.)
Built-in fully-decoded protection circuit, displaying the electricity consumption of SLR camera on the screen.
Bulti-in protection device for high-power booster overvoltage, overcurrent and short circuit.

Specifications:
Condition: Brand New
Material: Plastic
Color: Black
Battery Size: Approx. 4.5 * 3.2 * 1.9 cm / 1.8 * 1.3 * 0.7 in
Cable Length: Approx. 82 cm / 32.3 in
Weight: Approx. 35.7 g

Package List:
1 * Dummy Battery Pack