Small, but with many possibilities

Who play no hands-free in the car via Bluetooth or no way his music from your smartphone, which is well served with this accessory. The prerequisite for this, however, unless of course a Bluetooth enabled smartphone is a car radio with AUX port.
The unit is supplied with an instruction manual in English. The manual is well structured and quite extensive, as I would prefer a manual in German, although I usually have no problems with English manuals.
The cable and the round control knob act well made, how long shall keep the whole depends on the quality of the sufficiently long cable. The cigarette plug with the additional USB port for charging the Smartphone or other devices, looks a little cheap. Furthermore, the AUX cable has an extension, which can be used if necessary.
The button must be pressed only eight seconds and then coupled with BTC455 for pairing the Bluetooth-enabled smartphones. Subsequently, the device can be used. The status display is shown by an LED. The button is required for almost all actions, thus the speakerphone is then not quite free hand as described. Besides this head, there is a toggle switch for backward and forward navigation with music playback.
The quality of the speakerphone is good, though a bit more volume would be better. The voice quality is sufficient. There were no disconnections or any other abnormality.
Conclusion: Little helper of a lot more takes out from the car radio and the smartphone, thus succeeded, albeit still with a few weaknesses.