42 dB ANC – External HD mic detects noise, internal processor generates reverse waves to mute it Ultra Bass Technology 2.0 – Professionally tuned by Dirac Opteo for deep bass and ethereal highs 8 Hours Per Charge + 35.5 Hours Total – Large 45mAh per earbud with quick charge support 4 HD Microphones + Clear Voice Technology – Trained on 30M+ sound models for crystal-clear calls Nothing X App – Adjust ANC levels, Ultra Bass, touch controls and enable Low Lag gaming mode