Option 1: Card Reader w/Headphone.
Option 2: Card Reader w/Headphone & Radio.

Features:
External memory interface:SD/MMC Card.
Audio Mp3 headphone.
Folding,easy to carry.
Display:LCD.Size:20x30 mm.
Power supplied for USB.

MP3 Section:
File support MPEG 1,Layer 3.
Sampling Rate (Bit Rate) 32/44.1/48KHz (8Kbps¡ã320Kbps).
S/N ratio: About 70dB (1 kHz).
Impedance:32ohm +/- 10%.
Normal handly Input:10mW.
¡PMax. handly Power: 1W.
Sensitivity:108+/- 3 dB at 1 kHz S.P.L.
Frequency Response:20Hz - 20 kHz.
Channel Balance:30 dB at 1 kHz S.P.L.
Speaker size:Dia.40mm.
Thickness of speaker film:16£gm.

Function Control:
EQ (Normal, Rock, Pop, Class and Ultra Bass).
Play/Pause/Power on/Stop/Off.
Rewind/Fast forward/Hold.
Volume +,Volume -.

Other:
Supported OS Win ME,Win 2000,Win XP,Win98,Win 98SE (Driver is required),Mac OS.
With in-line vibration level adjustment.
Driver unit:40mm dia. Dome.
Battery Capacity: 0.4 MAH.
Play time:5 hours.