A2DP Bluetooth rarely comes as standard in cars except on prestige marques, but most new vehicles at least come with a 3.5 mm audio socket on the audio system for plugging-in mp3 players. If you want a quick and cheap way to upgrade the car’s audio to Bluetooth, take a look at he BTR006 Bluetooth Stereo Receiver.

The BTR006 is a small plastic rectangle just a few millimetres deep (45 x 33 x 8 mm). It has only one button for on/off, an activity LED, a DC power socket and a 3.5 mm audio jack on the end of short lead. It’s a doddle to use: charge up, connect the jack into the 3.5 mm audio socket, pair with smartphone and starting playing music from your smartphone through the audio system. Simples!

Audio quality is perfectly acceptable given that it’s Bluetooth anyway and the receiver successfully paired with every device I tried it with. The receiver supports both Bluetooth 2.1 with both A2DP and AVRCP.

There’s an internal battery that’s good for 12 hours according to the spec, which is probably about right based on my experience. I get a whole week of podcast listening which means somewhere over ten hours based on weekly commute and other travel. Contrary to some reviews, it is possible to charge and use the device at the same time. The confusion arises as connecting the charger does turn off the BTR006, but turning it back on again lets the receiver charge and play at the same time.

One of the best features is that it automatically powers off when the Bluetooth connection is lost for a few minutes so the battery doesn’t run down when the car is parked and not in use. Obviously the receiver has to be turned back on, but that takes seconds to do.

Unless there’s a convenient nook or cranny in your vehicle, the BTR006 will hang down from the audio socket, especially as the lead isn’t very long. Of course, the easy solution is to use Velcro, with a small strip on the back of the BTR006 with a matching strip on the dashboard. The BTR006 can be easily detached for charging at home or in the office via the supplied USB charging cable. Here’s what it looks like installed in my car….yes, I probably should have cleaned the dash before taking the picture.

Note that the BTR006 does not have a microphone so it’s not possible to use it for hands-free calls but regardless this is an excellent buy to play music through your car’s audio system via Bluetooth.

Available from Amazon for around £15 or $28 – just search for BTR006. Disclaimer – I bought this device personally.