Studies show that the average earbud contains more bacteria than a cutting board. Still earbuds are taken in and out of the ear multiple times a day while containing various bacteria and without cleaning them. These unique design Insightarae Tws Earbuds earbuds are cleaned with UV C light within the charging case eliminating up to 99, 9% of the bacteria found on the earbud. The earbuds use BT 5. 0 For easy auto pairing connection and low energy consumption. The earbuds allow a play time of 3 hours and can be re charged in the 400 mah charging case. Operating distance up to 10 metres. UV C wavelength 270nm 280nm. UV C function will only work when the case is closed to avoid UV C exposure to user. Including 1 extra pair of eartips. Including PVC free TPE material micro charging cable.