Bluetooth

Bluetooth is a wireless communication technology named after the 10th-century Danish king Harald Bluetooth. In Japanese, it's typically written in Roman letters or katakana.

Common devices

• Bluetoothイヤホン/ヘッドホン (Bluetooth earphones/headphones)
• Bluetoothスピーカー (Bluetooth speaker)
• Bluetoothキーボード (Bluetooth keyboard)
• Bluetoothマウス (Bluetooth mouse)

Common expressions

• Bluetoothで接続(せつぞく)する (to connect via Bluetooth)
• Bluetooth対応(たいおう) (Bluetooth-compatible)
• ペアリングする (to pair devices)
• Bluetoothをオン/オフにする (to turn Bluetooth on/off)

Technical notes

• Uses 2.4 GHz radio frequency
• Range typically 10 meters (Class 2 devices)
• Versions: 4.0 introduced BLE (Bluetooth Low Energy), 5.0 improved range and speed

Register: Neutral. Standard technology vocabulary.