Good idea but serious flaws in the implementation

The idea of ​​making a mobile wireless headphones, was long overdue. As an alternative to the radio reception of the audio signal so would Bluetooth into consideration. However, to me the configuration changing channels has become cumbersome and I wanted to ease-of-use of a simple plug-in connection with the transmitter. Unfortunately, it appears that the mobile wireless headphones are just like the devices of former times by no means perfect.
First, the sound which is quite satisfactory for the price group. At least as long as the radio range is set to "Lo", what a reception space allows. Outside interfere advance utility poles or tramway track the receipt, there are dropouts and strangely even noise. Is set to High Performance program to the audio signal a Lautens sums transferred. From because of interference and digitally. Schön is the battery life of the headset - normal Discounter batteries last several hours - during normal operation so weeks - by. A downside again with the battery power of the transmitter. He is also in normal operation ("Lo") within a few hours flat and the batteries are not interchangeable and must be charged via mini-USB. Had the developers here thought would be the micro-USB connector as with any normal phone. But then it has also Bluetooth and transmits audio signals störfrei. Home annoying especially that both sender and recipients must be turned on separately and stop automatically at idle for 3 minutes. For the transmitter off does not mean save power: he can shine his red diode successfully until the battery is sucked dry (takes about 2 days). The ear cups are covered with a plastic, sitting quite comfortable, but after a while strongly contributing to the ear warming.
Conclusion: annoying! With a few good approaches (portability and extremely good battery yield the headphones) so many disadvantages to connect (noise, hum, low transmitter battery, endless press buttons to turn your head warm) is absolutely ridiculous. The Blaupunkt headphones are not German quality but a lousy gadget with technology of yesteryear. Next time again Bluetooth!