Only criticism: He inlaying battery is resolved unnecessarily complicated and had apparently soft design. Otherwise I can not erkären a battery compartment under the shell cushions.
The range is quite sufficient in a Stahlamierungswohnung. The susceptibility in this network is very low, neither WiFi nor cordless phones or Bluetooth interfere with the device. The sound is a bit thin, according to users, but for simple music or audio book enjoyment aussreichend. but it is not like a HiFi enthusiasts.
The headset switches off after about 2 minutes the signal and the headphones off when no audio signal is received. Which in itself hardly a Prolem is contrary I find it to conserve battery charge.
A design competition will not win the power. It is functional rather than beautiful. So as a small car. Not pretty but it goes. So is this system ... Not nice but it makes its service.
As a school grade I'd give a 2-3. ve already seen worse but also better. Price / quality OK!