... full stereo sound;Light,easy to carry; 1 The products are multifunctional: charge of iPod, MP3, PDA, mobile phone, emit their frequency ... audio system, and receive through the vehicle FM frequency, at the same time act as cradle ... to your requirement. 3 There are 8 frequency channels for you to choose: 88.1, ... lock technology, making the frequency steadier, with high fidelity and separated solid effect