The Edifier ES850NB Headphones are wireless over-ear headphones designed for travel with active noise cancelling technology. They feature Bluetooth v5.4 connectivity and support for LDAC, AAC, and SBC audio codecs. With a playback time of up to 92 hours when ANC is off and about 53 hours when ANC is on, these headphones are perfect for long trips. The 40mm dynamic drivers deliver high-resolution sound, and the built-in microphone allows for hands-free calls. The stylish pink/rose color and foldable design make them convenient to carry on the go.