- Configurable 4-frequency settings: 88.7Mhz 88.5Mhz 88.3Mhz 88.1Mhz- Just works- No buttons- No settings- Simply plug the 3.5mm stereo audio jack to your music player (iPod/MP3/MP4/PDA/Laptop/PMP etc)- Car cigarette?socket powered- Note: frequency cannot be selected or changed <br />- Configurable 4-frequency settings: 88.7Mhz、 88.5Mhz、 88.3Mhz、 88.1Mhz- Just works- No buttons- No settings- Simply plug the 3.5mm stereo audio jack to your music player (iPod/MP3/MP4/PDA/Laptop/PMP etc)- Car cigarette?socket powered- Note: frequency cannot be selected or changed                                                                                                                                Dimensions: 3.74 in x 2.76 in x 0.79 in<br />Weight: 2.19 oz