Edifier W820NB Plus Wireless Headphones, ANC (beige). Just you and your favorite songs. The Edifier W820NB Plus headphones are equipped with dynamic 40mm drivers for crystal-clear and detailed sound. They utilize hybrid ANC noise cancellation technology, effectively reducing noise by up to -43 dB. The built-in microphones allow for uninterrupted conversations and offer a battery life of up to 49 hours. The thoughtful design ensures dreamy comfort. Fall in love with music all over again and immerse yourself in the sounds of your favorite songs. The W820NB Plus features an integrated LDAC codec and is Hi-Res Audio certified, meaning they meet the highest audio standards. Additionally, they come with 40mm drivers featuring a titanium composite diaphragm, which, in combination with the hybrid ANC technology, allows you to fully focus on the music.