abcGoodefg Helmet to Helmet, Rider to Rider/Passenger Motorcycle Intercom Communication System Two Way Radio - Connect to MP3/iPod/iTouch/Nano/CD Audio Devices Hands-free communication between rider and passanger Can incorporate additional audio equipment(CD/MD/MP3/MP4),compact and functional design Enjoy stereo audio from portable sets. (CD, MP 3, MP 4, etc.) Free talking with high quality voice. Single-Package include: 1 x intercom unit (with packaging) 2 x Single Microphone Earphone 1 x 3.5mm Audio Cable 2 x Spronge Earphones Cap