Feature:  -Multi formats support OGG, MP1, MP2, MP3, WMA, WAV, AVI etc. Audio and video formats  -Super-long and VOX voice digital recording from mic. Or radio  -Touch screen navigation  -Stereo loudspeakers  -Supporting pictures screen saver  -Multi-languages Selection  -Electronic album and picture browse, electronic file storable and readable  -Lithium rechargeable battery  -Telephone book function and Electronic book function  -Support TF Card  -Build in FM radio  -Firmware upgrade available  Specification:  -Size: 90mm(L)*55mm(W)*14mm(H)  -Weight: 70g  -Color: Black  -LCD: 2.8" 260K Color TFT Display  -Memory Capacity: 128M/ 256MB/ 512MB/ 1GB/ 2GB/ 4GB  -Interface: USB2.0 (Read: 1000k Byte, Write: 800K Byte)  -Record sample rate: 8KHz  -Recording format: WAV(32Kbps), ACT(8Kbps)  -Recording time: 72 hours (ACT, 256M Memory)  -SNR: 90dB  -Output Frequency Range: 20Hz-20KHz  -Operation System: Windows98/SE/2K/XP, Mac OS 10, Linux 2.4.2 Trademark: "HS" or customization LOGO Model: H458R Standard: CE, FCC, RoHS Min. Order: 200pcs