Which statement about Bluetooth class ranges is correct?

• A. Class 1 has 100m range, Class 2 has 10m range, Class 3 has 1m range
• B. Class 1 has 1m range, Class 2 has 100m, Class 3 has 10m range
• C. Class 1 has 10m range, Class 2 has 1m range, Class 3 has 100m range
• D. Class 1 has 50m range, Class 2 has 50m range, Class 3 has 50m range

Answer: (A)

Bluetooth class ranges describe how much power a device uses and the typical communication distance. The highest-power class gives the longest reach, while the lowest-power class stays closest. So you’ll usually see Class 1 expected to reach about 100 meters, Class 2 about 10 meters, and Class 3 about 1 meter in open space. The statement that Class 1 has 100 meters, Class 2 has 10 meters, and Class 3 has 1 meter aligns with these standard ranges. The other options mix up these distances or assign the same distance to different classes, which doesn’t fit how the classifications are defined. In real life, factors like walls, interference, and antenna design can shrink these ranges, but the nominal values follow that 100 m / 10 m / 1 m progression.