Master & Dynamic MH40 Wireless review: looks like $300, but doesn't sound like it - The Verge
Master & Dynamic MH40 review: Beautifully crafted, rock-solid headphones that also sound excellent - CNET
Amazon.com: MASTER & DYNAMIC MH40 Wireless Over Ear Headphones - Noise Isolating with Mic - Professional Studio Headphones with Bluetooth Capability : Electronics