Razer Opus Headphones Wireless ANC Over-ear TECH SPECS At a glance THX® Certified Headphones Advanced active noise cancellation (ANC) technology Engineered for comfort Quick Attention Mode Auto Pause/Auto Play Tech Specs Drivers: 2 x 40mm dynamic drivers Weight: 265g Frequency response: 20 Hz - 20 kHz Microphones: 4 for hybrid active noise cancellation technology, 2 for voice chat Wearing style: Circumaural What’s inside: Headset, premium carry case, airplane adapter, 1.3m length 3.5mm analog cable, 30cm length USB-C to USB-C cable, USB-A to USB-C adapter Battery life: Up to 25 hours Bluetooth® Codecs: AAC & APTX, 4.2, A2DP, AVRCP, HFP https://www.razer.com/eu-en/gaming-audio/razer-opus