Tether Tools Case Relay Camera Power System Kit with Coupler for Sony Cameras with NP-FW50 Battery

Power your camera continually, and without interruption, with the Case Relay Camera Power System from Tether Tools . Equipped with a built-in 7.4V, 1,200mAh lithium battery and a 5 VDC input via USB, this system will provide power, while being connected to an external power source for a nearly constant source. When connected to a 2A USB battery pack or an AC adapter, the Case Relay can still be able to provide a constant supply of power to your camera, and thanks to the internal battery the system will s...