The integrated microphone ensures the reception of hands-free calls You can connect the USAMS US-SJ464 Bluetooth adapter wirelessly via the USB port Compatible for phones, tablets and computers The unstretched 38cm cable can be stretched up to 150 cm The USAMS US-SJ464 adapter works with Bluetooth version 5.0 The device transmits clear sound up to a distance of 5 m After the first device, the USAMS US-SJ464 adapter automatically connects to the paired device You will also find use in combination with traditional speakers