Edifier X6 comes with High definition aptX audio decoder, it provides CD level audio quality. At 16bit/44.1Hz, and the code rate can be up to 352kbps, reducing the loss of audio quality, retains more music details and truly restoring delicate melodies. With built-in 13mmTPU + carbon biological fiber composite diaphragm, the sound field is wide and full; the layers are stereoscopic and rich; the resolving is excellent, and the balanced tri-frequency can easily fit to a variety of music styles. It has Dual microphone array, equipped with the eighth generation CVC noise cancellation algorithm, intelligently filters the environmental noise. Crystal clear calls even in a noisy environment. The product has passed IP54 dust and water proof test, and can be used freely to workout or in a rain to enjoy every moment of music. The product of about 5hrs of a single playtime time and another 19hrs with the charging case can meet the use around the clock. You can charge it wherever you are and4 whenever you want. This latest Edifier X6 Wireless Water And Dust Resistant Earbuds has 01 year warranty.