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Noise Cancelling Wireless Earbuds
Active Noise Cancellation- Hybrid 3 layer Active Noise Cancellation. 1. Outward-facing microphone detects external sounds and counter with equal anti-noise to first cancel noise. 2. Inward-facing microphone listens inside auditory meatus to select up internal sounds and produce anti-noise again to twice cancel the left noise. 3. Ear caps prevent 90% noise getting to auditory meatus .
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