For not even 20,00 EUR incl. Shipping costs to get a very well-made BT speaker, visually appealing and solid acting. The connection to smartphones (Samsung & LG) and notebooks (Acer & Lenovo Windows 8) works fast and flawlessly. The volume can be directly regulate the speaker, the sound is very good for the small size: Clean ups, lots of bass, balanced sound, no distortion, no vibration. As a headset with the device can be any phone software on a smartphone (Android phone, Fritz! Fon app, Skype) use of the best quality. Likewise, its use as a "table-speakers" on the balcony, terrace, etc. feasible to achieve a music playback from your phone in good quality and sufficient volume. As long as no audio signal is transmitted, is the BT speaker is in standby mode, resulting in significantly higher uptime than the specified 4 hours, the well refer to continuous operation.