Fairphone 4 16 cm (6.3") Kettős SIM Android 11 5G USB C-típus 6 GB 128 GB 3905 mAh Szürke (F4FPHN-1DG-EU1)

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.