What is Bluetooth?
Bluetooth is a Microchip technology enabling seamless voice and data connections between a wide range of Bluetooth devices through short-range, digital, two-way, radio transmissions operating in the 2.4 GHz ISM band.
Bluetooth Compliant Versions
Bluetooth version 1.2 compliant means it is easier to use, a quicker connection, and interference is reduced! Bluetooth versions are backward compatible, so you can upgrade to a higher Bluetooth versions.
Bluetooth version 2.0 + EDR (Enhanced Data Rate) ADDS audio bandwidth, and is becoming increasingly popular for battery life improvement of nearly 20% if BOTH devices have Bluetooth version 2.0.
Bluetooth Class Range
Bluetooth Class 3 radios use just 1 mW of power, with a range less than 2 feet.
Bluetooth Class 2 radios, typical in cell phones, have a range of up to 10 meters or 30 feet if unobstructed.
Bluetooth Class 1 radios, typical of Newer Bluetooth dongles and headsets, have a range of up to 80-100 meters, that's up to 328 feet if unobstructed!