By swapping from an internal battery to a battery cradle for both the transmitter and receiver units, you can now supply the CineEye 2 Pro with power from any Sony-style NP batteries. The CineEye 2 Pro App lets you start and stop the camera remotely, change the aperture, shutter speed, or even ISO. Minimize crew movement and noise while maintaining control from a distance. With its high-end features typically found in expensive transmitters combined with its budget price - the Accsoon CineEye 2 Pro will grow to be an essential part of both budget videographer's and high-end cinematographer's kits.