The device is a simple black box with a matte finish. The workmanship is good and the look of the device makes a high quality impression. The device is very light, but still does not work cheap. "The inputs and outputs of the cable are marked clearly. The feet on the bottom of the device, it is very stable and wobbles or does not slip.
The instrument's battery is charged through the plug in the cable into any USB port. Charging time is about 1.5 hours. Then, the battery life is about 4 hours (an accurate measurement, I have not done, but I have come with intensive use in about 4 hours).
The coupling of the device is very easy and fast. It works via a long press of Mutlifunktionstaste. Standby is also achieved by by holding the knob. The unit automatically turns off after some inactive time in the standby mode to save battery.
The fact that the device has installed a battery, it is very mobile "and versatile. It does not have to be permanently connected to a power source and is thus well suited for use in the car.
The device has a range of about 10 meters, which is sufficient for most applications. Is also very helpful that you can simultaneously connect 2 devices.
Overall, the device does exactly what it should without unnecessary features. The sound quality is good, and even very good for the size and price of the device.
The adapter is thus highly recommended. He has a very good price / performance ratio.