【One Step & Auto Pairing】Take the headset in the charging case, select "Luna One" on your Bluetooth device, and access your phone's Bluetooth settings to pair your wireless headset in one step, and the paired device will automatically connect the next time you use it. 【Ergonomic Design】45 degree in the ear, no pressure pain on the ear canal. Ergonomic design for optimal listening experience. 3g Ultra Light Earbuds with Supermini Portable Charging Case The pocket charging case does not take up space to carry, and you will have no pressure on the port of the ultra-light 3g earphones. The ergonomic design provides a comfortable and secure fit that doesn't stick out of your ears, especially for sports, workouts, gym. 【Fast Charging/Extremely Long Battery Life】Just charge the wireless earbuds for 30 minutes to get 5 hours of use. With the high-capacity charging case, the Bluetooth headphones can be used for 40 hours. Meet your long trips, work meetings and studies. With the best functions and exquisite design, our Bluetooth headphones are your best choice for a gift. 【Touch Control of Your Devices】BETMI earbuds support dual ear touch control, providing convenient operation on volume control, previous/next song, pause and answer calls as well as voice assistant control. Bring you the true wireless experience when using iOS or Android smartphones, PCs, tablets, laptops, TVs... Also, nothing is more important than always training with music. 【Stereo Sound Quality】 The wireless earbuds feature high quality speakers that enhance quality sound with deep bass and midrange at optimal levels that are pleasant to the ears. You will feel like an immersive concert.