I've played a long time with the idea of me buying a Bluetooth speaker. Fairly quickly, I realized that I did not want the little howler doses. In the shop with the big M 2 I then met with the Bose SoundLink Mini. Actually, my decision was already taken. The SoundLink it should be. By chance I came across the Sony SRS-X5. On Youtube there is a video, which compares fairly well the SoundLink Mini and the SRS-X5 in my opinion. After my personal taste, I found the X5 in the video better. At Saturn, I then came across one and belongs sample. It was quite an eye - opener. There was the X5 for a short time for 176 Euro at Amazon, I immediately slammed shut. For me, the box has a very good sound. I've tried different styles of music. From Eminem to Pavarotti. Everything super.Ein very pleasant good bass and clearer to me sound as in the SoundLink. From the sound of her, one really thinks listening to a small stereo. The box looks great and has been recognized by my Samsung tablet immediately. The Bluetooth connection is also maintained when you're in different rooms. Tried it yesterday. Removal of the devices to each other about 9 meters, between a brick home interior wall and 2 doors ... everything super !!! So Optk super, super feel, sound great for me, super bluetooth.