LP Shotgun Stereo MicrophonePhotography Interview Videomic HD Professional CondenserStereo Video Microphone for DSLR Video Cameras CompatibleLP Shotgun Stereo Microphone is compatible with most digital SLR camera&video cameras& most other recording photography equipments featuring a 3.5 mm (diameter) stereo mini-pin jack. Reducing recording noise-- LP Shotgun Stereo Microphone features new innovation that significantly reduces autofocus noise from being recorded. No Battery necessaryLP Shotgun Stereo Microphone is not equipped\with a battery or on\off switch: power is supplied form the camera. LightweightCompact &Portable, professional quality, LP Shotgun Stereo Microphone will ensure that you never miss a great shot. You're worth it. Pls note that it works for camera/camcorder/computer with a 3.5mm "mic" hole/interface. Mobile/Ipads are not compatible.