MP-B is the worlds most slim 5-in-1 mp3 player, only 8.5mm in thickness! 7 color background light, customize power-on info, make it so unique and individualized. Magnesium-aluminum alloy housing also endows it with elegance and nobility. By adopting Sigmatel solution, MP-B has superb CD level audio quality. Sennheiser MX300 earphone provided with MP-B can maximize its performance. MP-B is a nearly perfect choice for the hi-fi enthusiast on the go. MP-B has the power to light your life color by heart-pounding music. model: MP-B memory size: 128Mb meas: 62x70x8.5 mm weight: 50g * built-in FM stereo radio, frequency range:87.5MHz-108MHz * support record directly from built-in FM radio * digital voice record, sampling rate:8KHz-48KHz * CD level music quality, S/N≥90db,THD≤0.05%, channel balance:±3db,channel separate:≥90db, frequency response:60Hz-16KHz * support MP3, WMA, WAV * enable customize power-on info (text and graphic) * 7 color background light * support ID3 info display and song words synchronized display * simple and user-friendly operation interface * firmware upgradeable * rechargeable cell battery inside, working hours: ≥10 hours * System requirement: Windows 98/98SE/ME/2000/XP; Mac OS 8.6+/X (no driver needed expect Windows 98/98se) * Certificated by FCC (B), CE Price USD 54.8 / set Price Condition FOB Shenzhen Origin China Material magnalium Size 62 x 70 x 8.5 Millimeters Weight 58 Grams Packaging 1pcs per giftbox Package Size 17.7 x 13.2 x 5.7 Centimeters Package Weight 450 Grams Delivery lead time 5 days Minimum order 200 pcs Supply ability 50,000 pcs per month