One Step Pairing You don't need any skills to use these headphones. Pick up 2 ear buds from charging case, they will connect each other automatically, then enter mobile phone blue tooth setting to pair the ear buds. The earbuds will automatically connect to your phone when you take them out of the case after the first pairing.One Key Control Advanced touch control sensitive experience. You don't need to take out your phone for the call or audio. The touch control provides a more comfortable and accurate operation comparing to the physical button. Enjoy it is all the things you need to do. Note: Touch sensitivity is affected when there is liquid on the surface.150 Hours Playtime with Charging Case With a huge 8 hours play time and up to 150 hours with the charging case, you can just plug and play. While you’re not using your earphones they charge quickly while stored away in the case providing you near limitless listening time. The 2000mAh charging case with the ability to power your phone in a pinch, you’ll love the liberty your case offers to keep you moving.Comfort & Noise Reducing Fit Using buds made from premium silicone that form to your ear to provide a snug, noise reducing fit without slipping out to keep you in the music for as long as you need, enjoy it. Note: -Change to proper ear tips size if you don't feel comfortable or stable. -The proper size eartips will also help to boost the sound. Please try the way if don't get a bass. Low latency Mode The original low latency mode allows you to play games freely. Just take the lead and enjoy the victory. Efficient Pairing & Wide Compatibility Able to pair to any device, phone, computer or laptop in seconds gives you the convenience to switch devices in an instant or keep them paired to one so you can just set and forget while you watch your favorite show, listen to that book or that one track you can’t keep off repeat.