The Musen AKZ-18 wireless over-ear headphones in black provide a stereo listening experience designed for versatility across your favorite devices. Using Bluetooth v5.3, they maintain a stable connection with smartphones, tablets, laptops, and televisions within a range of 10 meters in open spaces. Equipped with 40 mm drivers, these headphones cover a frequency response from 20 Hz to 20 kHz. The matte black finish is complemented by soft synthetic cushions that wrap around the ears, which helps reduce ambient noise through a passive design. A 200 mAh battery supports 8 to 10 hours of playtime depending on your volume settings, and the device fully recharges in about 3 hours. These headphones offer a comfortable fit for those who spend several hours a day listening to audio.