Features: 1) MP3 player + USB flash disk + card reader 2) SNR: >90Db 3) Output power of the earphone: 32 impedance is 5MV 4) Output the frequency range: 20Hz-22kHz 5) Form of the music: MP3 6) USB 2.0 complaint with full speed data transfer 7) USB bus powered capability 8) Supports 8MB-1GB MMC/SD card memory 9) One AAA size 1.5V battery 10) Mp3 format: MPEG 1.0 layer 3 support 11) Five EQ: normalclassicrockbassjazz 12) A-B repeat 13) Repeat: single musicall music 14) Volume up/down control 15) Prev/next song select 16) Dimensions: L75 x W33 x H26mm 17) Wight (without battery and SD card): 30g 18) Supports driver for Windows 98/98se/ME/2000/XP/2003 19) Supports MAC OS 8.6, 9.x, 10.x 20) Supports Linux kernel 2.4 later 21) Segment LCD display 22) Supports build-in flash memory Other Price Terms: FOB Shenzhen Payment Terms: T/T, L/C