Features1: the appearance of beautiful， crystal shell， shiny bright shiny colors， gold， green， blue， red， blue， white， 6 color options.2: The sound quality is very good. When you download the songs to the phone memory card (TF card) or U disk， plug into the rear audio jack at the wonderful music small car at the bottom on the ring， let the music everywhere.3: You can use an audio cable cars and computers， mobile phones， MP3， MP4， PSP， iPad， iPod and other devicesConnection， you can when their extroverted sound.4: with radio function， automatic station search using the search dynamic storage units (press mode button "M" search)， receivedRadio signal depending on the local radio signal strength of the decision.5: Built-in rechargeable lithium battery， sound card charging time is generally 3-4 hours， medium volume can play 2-3 hours or so， (playing time depending on volume) Product parameters: the low-frequency radiator �� 1 Output Power: 3 ~ 5WFrequency response: 60Hz-20KHzSensitivity: 80db �� 2dbSignal to noise ratio: ��80dBDegree of distortion: ��0.3% USBSpecifications: USB2.0Power supply: MINI USBCharging time: 3-4 hours