With the Jabra Rox these problems are now settled. The size goes for wireless headphones in my opinion more than okay and not see when wearing also clunky. The seat can be adjusted perfectly with the supplied Ear Wings. To find the right size for me, I've been jogging twice with headphones and did so can choose the size perfect. After having adjusted the In Ears his ears, this also hold perfect and not wobble. I would recommend anyone to take care when adjusting time, all sizes on / try out twice and if possible even so to exercise to test the maintenance correctly. The cable length should be adapted in the neck with the included clip, then slackens and the cable is not in the neck.
The sound is very good. Reference to> 150 headphones I could not take, but you can clearly see the better sound quality compared to my previous 30 In Ears. In a separate analysis of highs, lows, etc. I will stand down due to lack of expertise and I would recommend to anyone if interested headphones to make its own, subjective impression of the sound. One should always keep in mind the purpose for which the headphones were also designed here. For the highly sophisticated audio enjoyment there are probably better, wired alternatives. For my purpose (training) I am very satisfied with the sound. The app from Jabra, I have not tested until now. Sometimes you can about it even a bit of the, already excellent, optimize sound impression.
The battery lasts 4-5 hours easy. Ca half an hour before the battery is empty, you will be asked several times for charging. Pairing Bluetooth always worked without any problems (Samsung Galaxy S3). Even the automatic reconnect after waking from standby works perfectly. The remote control (change volume, start playback, skip tracks) perfectly.
The stability of the Bluetooth connection can not be desired. I carry the smartphone in a pub is always in your pocket and had not been to a disconnect now. -Top!
Overall, I am completely satisfied with the Jabra Rox. Secure fit, very good sound, great processing - who buy recommendation for training or on the road looking cordless headphones!