Samsung LH75QMCEBGCXEN дисплей за сигнализация Обществен цифров плосък панел 190,5 см (75") LCD Wi-Fi 500 cd/m² 4K Ultra HD Черен Tizen 24/7

Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security.