Bluetooth was only supposed as a placeholder till marketing could come up with some thing really cool. Legacy pairing: This is the only approach available in Bluetooth v2.0 and prior to. Each device should enter a PIN code; pairing is just thriving if the two devices enter the same https://www.bluetoothspeaker.top/wireless-speaker-bt-5-0-party-music-box-subwoofer-powerful-bluetooth-boombox/