Bluetooth 5. 0 technology】:AIKELA TWS earbuds adopt the most advanced Bluetooth 5. 0 technology. Provide you 3D stereo sound.Earphones are easy to connect as they are available for a connection,no need any skills. 【140 HOURS PLAYTIME】:The wireless earbuds with 3500mAh charging case in total 140hours {url removed} can last 3-4hours playtime for a single charge.You can also use this ultra high capacity charging case as an alternative power bank for your iPhone XS XR X 8 7 plus, Samsung Galaxy, android phone, iPad and so on. 【One Step Pairing】The Wireless Bluetooth Earbuds are equipped with one-step pairing technology. Take the Left and the Right earbuds out of charging case,then earphones will pair with each other, then "X10 " automatically appear on your device. In a matter of seconds, you are in euphonic music world. 【Universal Compatibility】: Compatible with iPhoneXs XR X 8 7 6 plus, ipod shuffle, ipod nano, Android, Samsung Galaxy, BlackBerry, HTC, iPad Pro, Bluetooth-enabled Cellphones tablets and all device with 4.2 bluetooth;Perfect for Sports, Workout, Running,Jogging,Gym Exercise, Audiobooks, Watching TV and so on.