MENGS® Hi-Fi 2.4GHz Wireless Bluetooth 3.0 + EDR Audio Music Receiver Adapter with 3.5mm or RCA audio output for Home Stereo Speakers iPhone iPod Laptop Tablet PC - (3.7V, 25mA , 20Hz - 20KHz) (Electronics)
I use the Bluetooth transmitter to the auxiliary jack in my car radio in the center console. There, the device is permanently connected to the 12V cigarette lighter. After starting the vehicle, the transmitter will therefore start immediately. Alternatively, it also has an on-off switch, which I find very useful for mobile operation. The workmanship is very good. A cargo is carried out either via a hollow jack (cable not supplied) or via USB (cable is included). Mobile I had tested the MENGS regarding its battery life, and would say that the 6-hour battery life is nearly reached.
Sonically, I am thrilled. I had earlier in the car the B-Speech Rx2 in use, but the last bugged me more and more often with noise and interference during playback. The MENGS is so clear in the transference that I could hear at home, compared with my apt-X dongle to a Cambridge Audio Minx Xi no phonetic difference on my Samsung Note 3 out after testing. The transmitter therefore eminently suitable also in hi-Home area.
For me, at the current price of EUR 30 absolutely no alternative!