The PS21BT is delivered in a very chic packaging and is available in eight different colors (black, blue, green, red, pink, silver and gold) are available. I ordered the almost 80 x 80 x 42 mm wide and about 126 grams heavy speakers in Orange.
The PS21BT brings his sound over an approximately 4 cm drivers advantage. The sound makes my ears, however, a somewhat flatter, more mid or height stressed impression. The manufacturer has the speaker intentionally set to a very neutral sound profile. So you can make individual adjustments on the Equalizer presets of its smartphones. The bass range is but even then a bit too short.
The PS21BT is connected via Bluetooth connection to the mobile phone. For this purpose it is necessary to keep the on / off switch at the beginning of several seconds. Two low beeps and the red and blue alternately glowing plastic ring indicate a successful connection then the recording.
The PS21BT you can also use as a speakerphone. For this one uses the built-in microphone. Ringing the smartphone during music streaming, so you can assume "Play / Pause" button and also exit again the incoming call over the pressure on. The voice quality is good. It is well understood and understands its opposite clearly.
For about 30 euros you get a well-made, robust and above all, stylish Bluetooth speaker with really usable speakerphones. Sonically had the PS21BT a little more bass good standing to face. The battery life is just under six hours, however, fully in order.