Scosche IBTMC Wireless Bluetooth Microphone for Video Recording Wirelessly Record High Quality Audio on to your Device from up to 30 feet away The high Performance Condenser Microphone with DSP Noise Cancellation Records Incredibly Accurate Sound Works with iPhone 4, iPhone 3GS, iPod Touch 4th Gen and iPad 2 Rechargeable Lithium ion Battery Provides up to 4hrs of run time Built in Clip Easily Secures to Clothing