Bluetoothseadet
Bluetoothseadet is a device that uses Bluetooth wireless technology to exchange data or audio with other Bluetooth-enabled devices. The term is commonly used in Estonia to refer to any device that supports Bluetooth. Bluetooth covers a wide range of products, including headphones, speakers, keyboards, mice, smartphones, computers, cars, and various sensors. It operates in the 2.4 GHz ISM band and uses frequency hopping to minimize interference. Devices can communicate via Classic Bluetooth (BR/EDR) for higher data rates or Bluetooth Low Energy (BLE) for low-power, intermittent transmissions. BLE is widely used for sensors and beacons, while Classic Bluetooth handles more data-intensive tasks.
Common profiles and uses include A2DP for stereo audio streaming, HFP/HSP for hands-free calling, AVRCP for
Pairing and security involve discovery and the establishment of a trusted link. Pairing methods range from
Versions and evolution: since the 1990s, Bluetooth has evolved through Classic BR/EDR and BLE, with improvements