[Active Noise Cancellation]  Hybrid 3-layer active noise cancellation. 1. Outward-facing microphone detects external sounds and counter with equal anti-noise to reduce the environmental noise up to more than 35dB. 2. Inward-facing microphone listens inside the ear canal to pick up internal sounds and produce anti-noise again to twice cancel the left noise. 3. Ear caps prevent 90% of noise from going to the ear canal.

[Transparency Mode] You can hear what you want to hear, which lets outside sound in so you can hear and interact with the world around you. 

[Optical Sensors Technology] Pauses playback when taken out of ears, with real-time wearing detection.