* MP3+ FM Sunglasses
* PC interface supported:USB
* Digital formats supported: MP3/WMA
* Signal-to-noise ratio:87.2dB
* Playback Modes:Random play
* External hard drive function: Yes
* Audio Additional features:Auto-power off
* Earphones type: Binaural
* Mfr estimated battery life :5hours continuous
* Charging Time:3hours continaully
* Battery tape/capacity: Built-in Lithium lon Polymenr/3.7v,150mAh
* Maximum imput power rating:5VDC,150mA
* Voice output power:55mW
* Voice output frequency:20Hz-20Khz
* Earphone impendance:16 ¦¸*2
* Memory Flash:128MB-4GB
