The SOL is firmly and take sitting. However, it interferes with the lack of mobility of the ear because they can not be rotated. This detracts from the seating comfort for me.
The frequency range was fairly well mapped. The bass is deep and present, but not too much in the foreground. The highs are clear, but some occur in the background. The location of each instrument is ok. The sound is round and pleasant.
After the battery was charged, I turned on the Bluetooth. There "screamed" me a voice loud against. This was a little more impressive start. When the pairing was then, the listener played just case with an attractive sound quite loud in my ears. When I tried to lower the volume, I realized that this was no longer possible. I had already set the smallest volume.
I must say, I listen to music or books via headphones rather quietly. For me it was a clear knockout criterion and the SOL declined.
For people who love to listen to loud, the SOL is quite recommendable.
