Description: Features and specifications: 1) Polarized lens and TR 90 frame 2) Compatible formats: MP3, WMA, ADPCM 3) Available flash memory size: 64MB, 128MB, 256MB, 512MB, 1GB 4) Standard USB port 5) Integrated USB drive 6) Play function: play in order, pause, resume playing 7) Delete function: delete current or all songs or recordings 8) Integrated Microphone supporting ADPCM recording 9) Continuous playing time: 8 hours 10) Recharging time: 2 hours 11) 230mAh/3.7V macromolecule polymer Li-ion recharging battery 12) Automatically detected battery voltage and capacity 13) Battery consumption saving function: a) Automatic power off if no button pushed in 2 minutes under pause status b) Automatic power off in 2 minutes when all tracks played 14) Voice output power: 5mW + 5mW 15) Voice output frequency: 20Hz ~20kHz Inner packing: 1pc/gift box Outer packing: 50pcs/ctn Carton dimensions:44 x 39 x 55cm G.W.:12.5kg Our company supply many kinds of Mp3 Sunglass with high quality and competitive price,if you have interest in thest kind of products,please contact me.I am sure these kind of fashion products can bring you much benefit. Currency: USD Unit Price: Quantity: Delivery: