2 Way Radio MP3 Music Input Helmet to Helmet Intercom System Allows simultaneous two-way and hands-free communication between rider and passanger Great sound quality delivered without delay or interference Can be connected with other audio devices It offers an input jack to connect your MP3 / CD player directly into the intercom allowing both the Rider and passenger to enjoy music. Specifications: Brand new motorcycle intercom. Allows simultaneous two-way and hands-free communication between rider and passanger. Great sound quality delivered without delay or interference. Can be connected with iPods and other audio devices. Cable length: 150cm Rating power: 150 mW Frequency range: 50-20000 Hz +3dB Sensitivity: 84 dB+3 dB Dimension: 63 x 56 x 25 mm Working temperature: -20ºC to +50ºC Powered by 2 x AAA batteries (not included) Package includes: 1 x Main device 2 x Earphone 1 x Tieline 1 x Manual