R8 is a transfer device that turns any old wired headset into a Bluetooth headset. Given the trend for high-end smartphone manufacturers to dispense with the headphone jack, and everyone's preference to avoid pesky cables, Bluetooth headsets have become indispensable. This transfer device breathes life back into your old wired headset, reducing the pollution and resource waste caused by the needless disposal of electronic equipment. It creatively realizes the transformation of wired earphones into Bluetooth earphones, thus upgrading your old trusty headphones.