Sell mp3 sunglasses

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Lens of Polaroid from America company
TR 90 Flame
Shock proof and Anti-static electricity

Compatible formats: MP3/WAV/WMA
Stereo sound
Voice output power: 5MW+5MW
Voice output frequency: 20Hz-20Khz.

continuous playing time: 5 hours
Recharging time: 3 hours
Built-in lithium-ion polymer battery: 3.7V, 150mAh
Automatically detected battery voltage and capacity
Auto power off

Memory storage
Available flash memory size: 128MB/256MB/512MB/1G/2GB
Standard USB 2.0 port
Integrated USB drive
Share same USB port for download, upload and charge