【Mini design, Comfortable to wear】 Very mini design style, fits both ears, very light, and fits the ear hooks safely, suitable for long-term wearing without discomfort to the ears, and there is no problem in wearing for a long time. It feels so light and natural, you hardly notice its presence 【Total 35 Hours Playback】These single playtime of invisible earbuds can be used up to 5 hours after fully charged, and the sleek charging case can add using the time to 35 hours, it means that the charging box can provide 7 times for extra charging power for smallest earbuds, so you don't have to worry about it 【Random Use Single Earbud】Upgraded technology allows you to randomly pick one mini earbud(either left or right) for instant use when you are driving on the road or working in the office, with no need to worry if it’s the master earphone and working right away 【One-key Control】This invisible bluetooth earbud is one-key control, long press the switch. When listening to music, click play/pause, double click to switch to the next song; when answering an incoming call, one-click answer/hang up 【Stable connection, low latency】Bluetooth 5.1 chip, and true wireless technology can provide a more stable connection for small earbuds, signal transmission is more stable, and bring convenience to your life