Compatibility: Compatible with Sony A7 A7R A7S A7II A7RII A7SII A6500 A6400 A6300 A6100 A6000 A5100 A5000 A3000 NEX5 NEX7 DSC-RX10 II III IV and etc Input Voltage: USB port 5V-2A, Directly Connect to Power Bank (5V, 2A) for Indoor and Outdoor Use. (NOTE: Please Make Sure the OUTPUT of your Power Bank is 2A or More, the camera will not work properly when the output is less than 2A.) Function: Takes the place of the NP-FW50 type battery pack and provides a connection to the power source for long-term, continuous operation of your camera. It is a best choice for long time photography for studio and indoor shooting Safe: Built-in fully decoded protective circuit; Built-in protection of high-power booster overvoltage, overcurrent and short circuit. Portable and simple to operate USB Power: USB Port design provides your camera strong and stable power. Note: The camera and lens are not included