Soundcore Liberty 4 NC

Noise Cancellation: Adaptive ANC 2.0 that adjusts to your ear canals and environment in real-time.Audio Quality: 11mm custom-tuned drivers with LDAC for Hi-Res wireless audio and HearID 2.0 sound profiling.Battery Life: 10 hours standalone playback, expanding to 50 hours with the wireless-charging case.Calls: 6 microphones backed by an AI algorithm for clear call quality.Connectivity: Bluetooth 5.3 with multi-point connection support.Water Resistance: IPX4 rating against sweat and light splashes