Review: Sennheiser's Ambeo Smart Headset offers binaural recording at a price | AppleInsider
Apogee Sennheiser AMBEO SMART HEADSET – Now Available in Black
Sennheiser AMBEO Smart Headset (iOS) in-Ear Headphones with Binaural Audio - Active Noise Cancellation, Transparent Hearing and 3D Sound Recording - Black - Walmart.com