Ultra light, Ultra comfortable: Weight under 29g, ultra light, lean and flexible. Soft liquid silicone neckline and eartips provide the perfect fit and all-day comfort. Ambient sound monitoring: With the ambient sound monitoring mode enabled, colleagues enjoying music can also perceive the ambient sound without taking off the headphones, making outdoor travel safer and safer Active noise reduction technology and AI call noise reduction technology: polymer composite diaphragm, using Japanese daikuroku original wire winding sound coil, showing more sound details. It can automatically filter ambient noise and only capture clear and clean human voice, so that the conversation is as clear as face to face. Sweat and Water resistant: These wireless headphones are IP55 splash proof certified. The IP55 headphone rating guarantees your headphones protection from light rain and sweat. Anti-sweat technology keeps your Bluetooth headphones safe during the toughest of workouts. Quick chargi