Black Calls/Music In-ear Headset True Wireless Stereo (TWS) USB connectivity Bluetooth 5.2 10 m Circumaural 20 - 20000 Hz 16Microphone type: Built-in Loud and ClearEnjoy clear AI-enhanced calls thanks to 4 microphones on the Life Note 3i, built-in noise-canceling headphones and a proprietary algorithm for improved voice pickup.Rich and Customized SoundLife Note 3i noise canceling earbuds, 10mm drivers deliver rich and powerful bass. Use the Soundcore app for a better music experience to customize your EQ and sound profile.Power for HoursLife Note 3i noise canceling earbuds allow you to listen uninterrupted for 9 hours.Hybrid Active Noise CancellationGet optimized noise cancellation to deliver all you need. Hearing is your musicperfect for when you're indoors or on the go.Artificial Intelligence Enhanced CallsLife Note 3i noise canceling headphones have 4 microphones and an AI.Feel the PressureEquipped with 10mm drivers, enjoy powerful bass and clear treble for long periods of time.