Bluetooth Headphones Special edition in collaboration with the Finnish ‘cello rock’ band Apocalyptica With active noise cancelling Circumaural Closed-back Dynamic Bluetooth 5.1 Codecs: APTX HD, SBC, AAC Frequency range: 20-20,000 Hz Impedance: 32 Ohm Driver size: 45 mm Connection: USB-C (charging), 3.5 mm Aux Hands-free function (integrated microphone) with CVC8 noise cancellation Battery life: max. 50 hours with ANC activated, 45 hours with telephony Charging time: 2-3 hours Compatible with Siri and Google Home Weight: 300 g Colour: Black Includes 3.5 mm Aux cable and USB-C charging cable