Product Features:
This product employs imported lenses, with trendy appearance; it supports MP1,2,3, WMV, WMA, ASF, WAV music formats; reinforced Polaroid polarizing lens provides clear, natural sight, and excellent anti-impact performances. It shields UV, glare and diffused light, allowing you to enjoy music in the sun without disturbance, and protect your eyes and eyesight; flexible earphone cord in best length, HIFI stereo earphones, up to 85 decibel volume, bring you endless joy of high-quality music; built-in lithium battery support maximum continuous 4-hour playback.
“Encrypted Space” disk:
You can divide the memory of the player into two disks using supplied tool software, and encrypt one disk to hide the files in this disk, make the content saved in the encrypted disk can’t be read or written by any unauthorized people, safely hide your secrets.

Led indication status:
Working status:Led status
Playing status:Flashing
Low power status:Flashing speediness
Recharging (USB Charger):USB Charger Red Led Power.Green Led Charger
Fully Recharget（USB Charger）:USB Charger Green Led Off
No music files to play:Light 20 seconds after off
Transfer data:Flashing speediness
RELATIVE  TECHNOLOGY  PARAMETER：
Digital formats supported:MP3/WAV/WMA
PC interface supported:USB2.0
Mfr estimated battery life:5 hours
Battery tape/capacity : Bullt-in Lithium lon Polymer/3.7V.150mAH
Maximum input power rating:5VDC
Earphone output power:5mw
Voice output frequency:20Hz-20Khz
THD:0.05%
Recharging time:2 hours
Normally works current:30-35mA.
Signal-to-noise ratio:87.2db
Earphone impedance :16
Weight:52g
Dimensions:172*160*40mm
Extended Length of Earphonefixed lever:14mm
Rotary degree of earphone fixed lever:270°
Rotary degree of earphone:90°
Bluetooth testing specifications
Normal  Connection Current:14 mA
Speaking  Current :40mA
Power  OFF  current :40 uA
Transmission Range:6～10 M
Range of  Operating Voltage :3.3V～4.2V V