1. Small but stable: Each invisible earbud is only 0.23 inches and weighs 0.1 ounces. It is the smallest invisible Bluetooth headset in the world. It will not feel painful when worn for a long time. Even women with small ears can wear it. And it is stable to wear. Its design fits the cochlea, will not fall off, and is waterproof. It is a good choice for exercise. 2. Long-lasting and durable: Equipped with a 350mAh charging box, the earphones can charge the micro earbuds 3 times continuously. After a full charge, the invisible earphones can be used for 36 hours to listen to music or calls, and the standby time is up to 140 hours, which is convenient for going out without frequent charging. 3. High-fidelity noise reduction: HI-FI sound quality, cinema-level sound effects, professional acoustic team tuning, enhanced mid-high frequency vocals, and beautiful sound quality. True active noise reduction allows you to enjoy beautiful and clear music outdoors 4. Stable connection: Bluetooth 5.0, stable connection, no noise, continuous connection. The mini wireless earphones can be used up to 30 meters away from the phone 5. Touch to play: By touching the earphones, you can change songs, pause/play, answer/end calls, voice assistant, etc. Turn on the Bluetooth of your phone, and the earphones will automatically connect and pair after opening the lid. It can be used for both ears. Put either one back into the charging compartment, and the other can continue to listen to songs. After charging is completed, take it out and it will automatically connect