Feature:
        Compatible format: MP3, WMA

        USB port for download, upload and recharge

        Flip-up lens

        Automatically detected battery voltage

        MP3 & FM player

        Bluetooth

        4GB memory

 
Specification:
    Operating frequency range:2.402GHz-2.480GHz

    Bluetooth V 1.2 compliant

    Range of wireless connection: 10 meters

    Transmitting power: Glass 2

    Supports headset & handfree Profiles

    Headphones with built-in rechargeable 150mAH lithium battery

    Digital formats supported: MP3, WAV, WMA

    PC interface supported: USB 2.0

    Mfr estimated battery life:5 hours

    Maximum input power rating: 5 VDC

    Operating temperature: 5 degrees celcius~35 degrees celcius

    Non operating temperature: -10 degrees celcius~45 degrees celcius

    Earphone output power: 5mw

    Voice output frequency: 20Hz-20Khz

    Memory flash: 4GB

    Battery:rechargeable lithium battery

    Talk time: 6 hours

    standby time: 150 hours

    Demension:145×75mm
 
    Weight: 50g

    Color: black

 
Package inculding:

            1×MP3 player sunglass

            1×USB cable

            1×power charger

            1×User manual