1All Specification: Glasses Lens of Polaroid from America company
TR 90 Flame Shock proof and Anti-static electricity Audio
Compatible formats: MP3/WAV/WMA Stereo sound Voice output power:
5MW+5MW Voice output frequency: 20Hz-20Khz. Battery 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/4GB Standard USB 2.0 port
Integrated USB drive Share same USB port for download, upload and
charge