The Bullseye Camera System is as simple as downloading SMEs free app, setting the camera downrange and seeing your shot on an iPhone, iPad or Android device. No cellular or internet service required!Features : 300-yard range High definition 960p All in one unit camera, Wi-Fi transmitter ball joint swivel camera, 15deg in each direction off center. Adjustable Wi-Fi transmitter, built in hinge and locking cantilever for up to 90deg tilt-n-lock, and rotation for direct line of sight to the receiver Wi-Fi transmitter led indicators for verification of power, and signal strength Integrated battery charging system On/off switch Wi-Fi features independent charging system