"Good audio, easy to operate"4.5 starson by S4owner
Pros: Design, quality
Cons: Can't think of any. It does what it is designed for
Summary: I have been using BlueAnt S4 for more that a week now.
Had to contact help desk to confirm that S4 can be charged
directly from USB port on your computer. I could not find this information in the manual.
It does not come with wall charger like its predecessor ST3. There is only 12 volt car
charger with short USB cable. Connected it to the USB port and it took about 2.5 hours for the battery to be fully charged.
After about 10 days BlueAnt reports battery charge as "HIGH". Nice.
The speaker produces nice and clear sound.
So far I am very satisfied with this product.