The black Skullcandy Hesh 3 Wireless are Bluetooth over-ear headphones designed to provide robust sound reproduction and cable-free convenience for mobile or stationary listeners in subways, airplanes, homes, offices, and outdoor areas. They utilize 40mm drivers and an internal analog amplifier to produce a wide frequency response of 20 Hz to 20 kHz. Bluetooth connectivity and an internal 22-hour rechargeable battery enable wireless use for short or extended listening sessions. Wired operation is made possible via the supplied aux cable.The built-in microphone and remote buttons allow you to answer or end calls, adjust volume, and control track playback. Thick memory foam earcups and a padded headband ensure that comfort is not compromised. The multi-folding, pivoting design affords precise adjustability and compact storage. Easily recharge the Hesh 3 Wireless via USB connection with the supplied charging cable. A quick, 10-minute charge gives up to four hours of listening time.