Anker R50i NC - Black Soundcore Model: Al-Powered A3959H11 Calls: enhanced calls with a custom Al algorithm and four microphones. IP54 Waterproof Sweatguard M: High quality waterproof and dustproof for usage True wireless Bluetooth earbuds Soundcore R50i NC A 42dB reduction in noise and adaptive ANC Depth: 42dB ANC depth to minimize noise interference. Covert mobile phone holder: A covert mobile phone holder on the cover, more practical for streaming videos and doing web browsing. Strong bass and distinct vocals: 10mm drivers combined with unique BassUp technology provide crisp, deep bass. Categories: SoundCORE nw10046 | Headsets & Speakers