What's in the box:

Andoer NP-FW50 Dummy Battery + 5V 3A USB Power Adapter Cable with Power Plug Replacement for AC-PW20 for Sony NEX-3/5/6/7 Series A33 A37 A35 A55 a7 a7R a7II A6000 A6300 (Uk)

Features:
USB port with power plug, plug and play, very convenient.
5V 3A charging plug for power supply, largely prolong the shooting time of your camera.
Suitable for Sony ILDC cameras, such as for Sony NEX-3/5/6/7 series, A33, A37, A35, A55, a7, a7R, a7II, A6000, A6300, etc.
Adopts multi-protection technology, such as short circuit protection, over-voltage protection and over-current protection, which ensures the absolute safety during use.
Cable length is up to 1.5m.

Specifications:
Brand: Andoer
Model: NP-FW50
Plug Type: EU plug, 100-240V
Compatible Camera Models:
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
Input: USB 5V 3A
Output: 7.6V
Power Supply: Power bank, mobile power (not included) and charging plug
Protection: Short circuit protection, over-voltage protection and over-current protection
Cable Length: 1.5m
Item Weight: 120g / 4.2oz
Package Size: 15 * 10 * 4.5cm / 4.5 * 3.9 * 0.8in
Package Weight: 125g / 4.4oz

Package List:
1 * NP-FW50 Dummy Battery
1 * DC Power Bank USB Adapter Cable
1 * Power Plug