[Minimal but stable] Each invisible earplug is only 0.25 inches (approximately 0.6 cm) and weighs 0.1 ounces (approximately 2.8 grams). It is the smallest discreet Bluetooth headset in the world. Long-term wear will not cause harm. Girls and ladieswith small ears can also wear it. However, it is stable to wear. Its design fits the cochlea, is not easy to shake, and is wear-resistant. It is a good choice during exercise [Lasting] Equipped with a 350mAh charging box, this headset can charge the microbuds continuously for 3 times. Full-power, hidden earphones can be used for 36 hours to listen to music or make calls, and the standby time is up to 140 hours, which is convenientfor going out without frequent charging [High-fidelity and noise reduction] High-fidelity sound quality, cinema-grade sound effects, professional acoustic team tuning, enhance the human voice in the middle and high frequencies, and the sound quality is beautiful. True active noise reductionallows you to enjoy beautiful and clear music outdoors [Stable connection] Bluetooth 5.0, stable connection, no freezing, continuous connection. This mini wireless headset can be used within a distance of 30 meters from the mobile phone. [Touch Play] By touching the earbuds, you can change songs, pause/play, answer/hang up calls, voice assistants, etc. Turn on the Bluetooth of the mobile phone, and the headset will automatically connect and pair after opening the protective cover. Bothsingle ear and both ears can be used. Put any one back into the charging compartment, the other can continue to listen to songs, and then take it out after charging to automatically connect