Edifier W820BTThe EdifierW820BTBluetooth Headphones have adjustable sides to fit the shape of your head to reach ideal comfort. Around-the-ear design has a comfortable fit made from breathable high elastic sponge a and faux leather cover. The closed back design also helps with reducing outside noise and keeping your sound in.Experience high quality lossless audio and a strong Bluetooth connection with Bluetooth v4.1 with added CSR technology.