Buy Razer Opus X - Green | Mobile Headsets | Razer.com
Razer Opus wireless headphones review | Laptop Mag
Amazon.com: Razer Opus Active Noise Cancelling ANC Wireless Headphones: THX Audio Tuning - 25 Hr Battery - Bluetooth 4.2 & 3.5mm Jack Compatible - Auto Play/Auto Pause - Carrying Case Included - Midnight Blue : Electronics
Review: Razer's Opus X Makes Active Noise Cancellation Fun and Affordable
Amazon.com: Razer Opus Active Noise Cancelling ANC Wireless Headphones: THX Audio Tuning - 25 Hr Battery - Bluetooth 4.2 & 3.5mm Jack Compatible - Auto Play/Auto Pause - Carrying Case Included - Midnight Blue : Electronics