CompTIA A+ Core 1 (220-1201)Mobile DevicesMedium
A technician is pairing a Bluetooth headset with a smartphone and needs to explain the expected wireless range to the user. Which of the following is the TYPICAL effective range for most consumer Bluetooth Class 2 devices?
- AApproximately 1 meter (3 feet)
- BApproximately 1 kilometer (0.6 miles)
- CApproximately 10 meters (33 feet)
- DApproximately 100 meters (328 feet)
Show answer & explanationAnswer & explanation
Correct answer: C. Approximately 10 meters (33 feet)
Most consumer Bluetooth devices, such as headsets and keyboards, use Class 2 radios with a typical effective range of about 10 meters (33 feet).
Why the other options are wrong
- A. 1 meter is too short and not typical for Class 2 devices.
- B. 1 kilometer far exceeds standard Bluetooth range specifications.
- D. 100 meters is characteristic of Class 1 devices, less common in consumer peripherals.
Bluetooth Range Classes
Bluetooth devices are categorized by power class, which determines typical wireless range.
- Class 1: ~100 meters, higher power
- Class 2: ~10 meters, most common consumer devices
- Class 3: ~1 meter, rarely used
Memory trick: Class 2 = '2 rooms away'—about 10 meters.