Glasses:          Mirrored Lens can shed Ultraviolet Radiation             TR 90 Flame          Shock proof and Anti-static electricity

Audio:          Compatible Audio File formats: MP3/WAV/WMA          Stereo Sound          Voice Output Power: 5MW 5MW          Voice Output Frequency: 20Hz-20Khz.

Bluetooth Earphone:          Transmission range: 6 to 10 meters          Continuous talking time: about 3 hours          Low cost and power consumption          Small in size and convenient to be carried          High-sensitivity RF chip embedded for transmission          Low-battery monitoring          Can be paired with 8 cell phones simultaneously          Comply with Bluetooth protocol v1.2 single stack play mode

Battery:          Continuous Playing Time: 3-5 hours          Recharging Time: 3 hours          Built-in Lithium-ion Polymer Battery: 3.7V, 150mAh          Battery Capacity Auto Detection          Auto Power Off