Tether Tools Case Relay Camera Coupler CRN5A Compatible with Nikon EN-EL14A

High-quality Relay Camera Coupler from trusted brand Tether Tools Provides continuous, uninterrupted power to your camera Compatible with an external 5V USB battery pack or wall power Ideal for time-lapse photography, photo booths, and video production Easy to use: simply insert into the camera battery port and attach to the Case Relay CPS Enables hot swapping of power banks for infinite power supply