The sound-Hammer

that thing is awesome, value simply super
simple operation, Bluetooth goes Top (title you can even further press on the unit)
good sound and sufficient volume, only slightly worse than audio cable (depending on the source)
but via Bluetooth, flash drive or SD card optimal (full power)
the Audladen goes fastest with the charger of the Galaxy S4
full the battery is when orange-red light goes out
FM radio without audio cable weak, but with audio cable OK
all that I have brought before the device were thrilled and would have taken it best
here you can not go wrong at this price
strike and have fun

UPDATE ... Attention
strange behavior
have a flash drive with 4GB it is about 670 hits are played in shuffle playback mode
then I have a 2GB SD card with about 100 titles current pop music the alphab. play
and even a stick 32GB with 700 engl. Title which are also alphab. play
but at the beginning of the unit will play the title from the top center, then goes alphab. further from the front
what's going on, the device does not like English. Title ???
If a solution has a post here ..