Anker Soundcore Liberty 4NC Anker Soundcore Liberty 4 NC True-Wireless Noise Cancelling Earbuds – white – A3947H21 Features Reduce noise by up to 98.5% with our advanced noise cancelling system Adaptive ANC 2.0 adapts to ears and environment in real-time 11mm drivers, Hi-Res Wireless and LDAC technology for crisp sound Full adjustable EQ with Hear ID 2.0 for a tailored sound profile 10/50 hours of battery for long-lasting quiet Fast Pair and Bluetooth 5.3 multi-point connection IPX4 water-resistance against spills and rain 6 mics and an AI algorithm enable crystal clear calls Note: Please refer to our FAQ and How-To-Video for additional tips on pairing your Liberty 4 NC earbuds with a Samsung Galaxy S23 series mobile phone. More wireless earbuds On-the-Go Design: Featuring nice case that’s all about making a statement, Anker Soundcore Liberty 4NC makes style and comfort a priority. Strong and Noise Cancelling: Anker Soundcore Liberty 4 NC noise canclling earbuds reduce noise by up to 98%. Using algorithms. Clear Sound Surround Sound Effect: Anker Soundcore Liberty 4NC features composite diaphragms so you can enjoy clear and well-balanced sound Strong and Smart Noise Cancelling Experience clear calls anywhere you go with 6 mics built into the wireless earbuds, alongside an AI algorithm trained to pick up your voice with precision.