Version Of The Bluetooth Speaker

When consumers purchase Bluetooth speaker, and often see the Bluetooth 1.1, 1.2, 2.0, 2.1, 3.0, 4.0, numbers, these numbers represent versions of, but also represents the Bluetooth speaker anti-jamming ability. 2012 with 2.0 the most popular mainstream, 4.0, 3.0 is the new just released soon. Bluetooth version, concerns the quality of the received signal. New version puts more emphasis to overcome noise. New versions can be backward compatible, consumers should consider price and demand.