Wireless Headphones - with microphone, headset, around the ears, closed construction, 3,5mm Jack, Bluetooth 5.0, radio frequency connection, supports AAC and SBC, track shuffle, taking calls, with volume control, frequency range: 10 Hz-20000 Hz, sensitivity: 97 dB/mW, impedance: 32 Ohm, converter: 40mm, removable cord length of 3,2m, battery life of up to 80 hr(s)