CMF Buds Wireless Bluetooth Earbuds, 42dB Noise Cancelling Earbuds, Dirac HD Audio, 35.5H Playtime, BT5.3, IP54 Waterproof, 4HD Mics Wireless Headphones for iPhone & Android - White: CMF by Nothing In-Ear wireless Headphones — Bandwidth of up 2900Hz provides 42dB Active Noise Cancelling with Transparency Mode, block out the unwanted noise. The external 4*HD Mics detects ambient noise and Clear Voice Technology for crisp, clear call performance. It's your preferred sle