For NC75 Headphones, Luxury Products Level,World-Leading Digital Active Noise Cancelling (ANC): Professional ANC technology quells 92% low-frequency background noise of city traffic,office,plane cabin or hubbub.(Kindly note: It’s NOT 100% sound cancellation,CAN’T quell human voice and don’t need to start ANC in quiet environment.) It makes you focus on what you want to hear, enjoy your music, movies and videos. Noise cancellation function can work well both in wired and wireless mode

For NC75 Headphones, 40Hours Playtime & Fast Charge: Built-in 750mAH energy-efficiency long-life battery provides up to 40H+ playtime to enjoy your own world without background noise,the 3.5mm audio cable as backup when in low battery.Advanced quick charge function,only 5-mins charge provides 2+ hours playtime,1-2hours charge to be full power.In addition,the over-voltage protection is designed especially for high-end cars,which make your charge faster and safer

For NC35 Headphones, Fast Charge&50+Hours Enjoyment: USB-C Charging 10 minutes to use 2 hours. High efficiency and energy-saving Bluetooth 5.0 to prolong playtime up to 50 hours after 1-2 hours’ full charge.Built-in sensitive microphones for easy communication under Bluetooth mode.Support voice control.3.5mm stereo audio cable as back-up when in low battery.Extra Charging protection especially for high-end cars

For NC35 Headphones, Elegant Appearance & Tiny Lightweight Folding: Light for head relaxing and portable for traveling storage. Durable headset 0.4 lb ONLY! 100°-120°ear-cups’ multi-angle flexible rotation with adjustable headband of 8 levels’ size stretch. Ergonomic international standard size

For NC35 Headphones, 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