Valco VMK15; wireless; active noise cancelling; on ear; closed; dynamic; Bluetooth 5.3; codecs: APTX, SBC, AAC; Qualcomm QCC30XX Bluetooth chip; frequency range: 20 Hz – 15 kHz; impedance: 32 ohms; driver size: 40 mm; Wired use possible; 3.5 mm mini jack stereo cable; Hands-free function (integrated microphone) with CVC8 noise cancellation; Battery life: up to 55 hours with ANC activated, 95 hours for phone calls; Charging time: 2-3 hours; content of delivery: VMK15 headphones, 3.5 mm aux cable, USB-C charging cable; Weight: 200 g; Colour: black