Headphones - with microphone, headset, ear, closed construction, Bluetooth 5.1, USB-C, supports A2DP, AAC, aptX, AVRCP, HFP and SBC, voice Assistant, track shuffle, taking calls, with volume control, frequency range: 10 Hz-40000 Hz, sensitivity: 97 dB/mW, impedance: 32 Ohm, converter: 40mm, removable cord length of 1,25m, battery life of up to 34 hr(s)