Bluetooth 5.0 Qualcomm 5.0 wireless version with excellent transmission stability. Play music in smoother way. Lower transmission loss rate. CVC noise cancellation The CVC call noise cancellation, reducing ambient noise automatically according to the call scene. Provide you a clearer and more stable calls. 360° Rotatable Charging Case Rotating charging case design,can be rotated more than 200,000 times. IPX5 waterproof Supporting IPX5 waterproof, it can cope with the dual challenges of outdoor rain and sweat. The perfect combination of comfort and stability The soft silicone and ergonomically designed earbuds ensure comfort and make the fit between the earplugs and the ears closer without worrying about the earbuds falling off during exercise. Long service life high hardness and long service life The rotating positioning touch device is made of zirconium oxide material, which has high hardness, long service life character.