1) Clarity: High Definition Optics® (HDO®); patented Oakley XYZ Optics®
(virtually distortion-free vision at all angles of view)

2) UV blocking: Oakley Plutonite® lens material (blocks 100% of all UVA, UVB, UVC and harmful blue light)

3) Strength: Impact resistance exceeds ANSI Z87.1-2003 requirements

4) Storage:  128 MB NAND flash memory or 256 MB NAND flash memory

5) Audio CPU:   75 MHz DSP with 18-bit sigma Delta DAC

6) SN ratio:  -85.058 dB

7) Filtering: Dual automatic EQ; static and noise correction

8) Earphones Type: Mylar speakers with fore-aft booming and rotational positioning

9) Range:  20 Hz ~ 20,000 Hz

10) Input / Output:  16 Ohm / 20 mW

11) Distortion: 0.91183%

12) Battery Type:  Rechargeable lithium-ion polymer, charged via USB connection or optional external charger

13) Full charge: Up to 6 hours playback time (3-hour charge)

14) Quick charge: Up to 4 hours playback time (1-hour charge)

15) Computer Interface  USB 2.0, backward compatible with USB 1.1

16) Connection Protocol  USB mass storage class specification

17) Controls  
Right ear stem
Front: fast forward/cue;
Middle: play/pause/power;
Rear: rewind/review

18) Left ear stem
Front: volume up;
Rear: volume down

19) Audio Support  MP3, WMA, WMA with DRM, WAV

20) Operational Modes  Sequential playback (in the order songs were loaded) or random play; Power Save (turns off after 3 minutes of inactivity)

Status Indicators  LED (1)

21) Supported OS  Windows XP, 2000, ME or 98SE (98SE requires additional driver);
Mac OS 9.2.2, OS X 10.1.5, OS X 10.2 or OS X 10.3

Operating Climate  -4°F ~ 140°F (-20°C ~ 60°C)

Storage  
Short term
-4°F ~ 140°F (-20°C ~ 60°C)

Long term
-32°F ~ 113°F (0°C ~ 45°C)

22) Weight  52 g (less than 1.8 oz)

23) Size  6.8" x 6.2" x 2.1" (172 x 55 x 160 mm)

24) Frame Material  Durable, lightweight Oakley O Matter®

25) Included  Operation Manual, Quick Start Guide, USB Cable