| 1，support format:：MP3/WMA |
| 2,support bit rate: MP3:8-384kbs,WMA:32-384kbs |
| 3,THD(Total hamonic distortion):＜0.1% |
| 4,SNR(Signal noise ratio):：＞92db |
| 5,frequency response:20HZ-20KHZ |
| 6,speaker:：2*10mw |
| 7,support capacity:128MB-8GB |
| 8,USB port:USB2.0 |
| 9,Support operation system:Windows98/win2000/winXP/winVista/Mac os x |
| 10:bluetooth protocol:V2.0+EDR(down compatible with 1.1) |
| 11,radio frequency:2.4G-2.48 |
| 12,transmission range:within 10 meters (barrier-free up to 15 meters) |
| 13,telephone frequency response：300HZ-3KHZ |
| 14，battery type: built-in rechange lithium battery |
| 15,full power use of time: play mp3 about 12 hours |
| bluetooth call: about 7 hours |
| bluetooth standby: above 200 hours |
