Wonderful Music Quality: The C5P Bluetooth Headphones Have A Built-In 10Mm Graphene Audio Driver With Professional Audio Tuning And Independent Sound Chamber Design. With Cvc 8.0 Noise Cancelling, The Bluetooth Headphones Offer Powerful, Low Bitrate Transmission And Scalability For Lossless Audio Quality. . Ip7 Waterproof And Designed For Sport: Secure Fit, Comfort And Waterproof Ip7 Design Make The Earbuds Perfect For Sports. The Bluetooth Wireless Headphones Are Equipped With An Innovative Earhook Design, Which Eliminates The Worry Of Falling Off When Doing Sports. The Ip7 Waterproof Technology Efficiently Protects Sports Headphones From Damage Caused By Sweat And Rain. . Bluetooth 5.1 And Stable Connection: With The Advanced Bluetooth 5.1 Chip, The Bluetooth Headset Can Provide A More Stable And Faster Transmission Speed, So You Can Enjoy Continuous And Stable Calls Even In Complex Signal Areas. . 40 Hours Of Playtime And Usb-C Fast Charging: The Wireless Headphones Offer Up To 8 Hours Of High-Quality Audio Output On A Single Charge, And The Included Charging Case Offers An Additional 4 Charges, Allowing For 40 Hours Of Total Playtime. Thanks To The Latest Usb-C Charging Port, It Only Takes 1 Hour To Fully Charge The Charging Box. . Touch Controls: Along With Smart Touch Sensors, In Ear Headphones Can Get Ultimate Control Without Using The Phone And Largely Prevent The Discomfort Like The Physical Button. By Touching The Touch Points Of The Headphones With Your Fingers, You Can Select The Last / Next Track, /Volume Up/Volume Down/, Answer / Reject The Call Or Activate Siri, Etc.