Noise Control: 2900 Hz frequency range, 42dB active noise cancelling with Transparency mode, and block out the unwanted noiseSound: 12.4mm dynamic driver, a bio-fibre and custom TPU diaphragm,and supports AAC and SBC codecs. It uses dirac opteo and Ultra Bass Technology 2.0 for enhanced audioBattery: A large 45 mAh battery in each bud. 8 hours of non-stop music on a single charge. 35.5 hours of playback with the case. Supports fast charging:10 mins charge for 6.5 hours with caseCall Function: With 4 HD microphones and Clear Voice Technology, along with AI Environmental noise cancellation for calls, it can isolate background noise in real timeMore Performance: Dual-device connection, Bluetooth 5.3, IP54 water and dust resistance, low-lag mode, Find My Earbuds, and customizable equalizer and controls