?????World-Leading Digital Active Noise Cancelling (ANC)?Advanced noise cancellation technology effectively quells 90% of stable low frequency background noise when in noisy environment airplane/subway/car/office/factory/crowd etc.(not 100% sound canceling).ANC ON,World OFF.ANC works well in both wired and wireless mode. ?????Elegant Appearance & Tiny Lightweight Folding?0.4 lb ONLY ! Light for head relaxing and portable for traveling storage,90°-170°ear-cups’ multi-angle flexible rotation with adjustable headband of 8 levels’ size stretch. Ergonomic international standard size ?????Fast Charge & 40+Hours Enjoyment?USB-C Charging 10 minutes to use 3 hours.High efficiency and energy-saving Bluetooth 5.0 to prolong playtime up to 40 hours after 1-2 hours' full charge.3.5mm stereo audio cable as back-up when in low battery. Built-in sensitive CVC8.0 microphones for easy communication under Bluetooth mode.Support Siri voice control.Extra Charging protection especially for high-end cars Benz,Porsche,etc. ?????Ultimate Sound?Clear mega bass from unique designed sound chamber and 40mm HD premium speakers.Professionally stereo drivers’ and other frequency bands’ improvements make music grace to find the rhythm of your soul.Sometimes quality just needs to be heard ?????Superior Comfort?Extremely comfortable memory protein leather with skin-friendly breathable feel.Exclusive Designs of Air Pressure Balance to reduce sound wave pressure of active noise reduction. Wearing much more comfortable than all other brands. Designed in Japan. Note: the exclusive authorized seller is Srhythm.