Bluetooth 5.0 with CVC 6.0 Noise Cancelling technology delivers true pure bass audio. Magnetic Suction – When not wearing, magnetic earplugs can prevent headphones tangled, easy to carry.IPX5 Sweat-resistant – Nano Coating Ensures Flawless Performance in the Rain and Sweat. Up To 9 Hours Music Time. Flexible Neckband – Flexible neckband is easily compactness with your neck, it’s super light, especially suitable for sports. Crystal Clear & Surround. Sound Wherever you go, whatever you do, just enjoying the pure, clear music anytime and anywhere.