Digital Noise Cancellation : Industry leading Noise Cancellation lends a personalized, virtually soundproof experience Battery Life: Battery Life up-to 24 hrs with NC ( 6 hrs Earbuds & 18 hrs Carrying Case ) & 32 hours without NC ( 8 hrs Earbuds & 24 hrs Carrying Case ) and Built-In Mic : Conversation flows freely with easy, hands-free calling. The WF-1000XM3 headphones deliver clearer voice quality and you can take calls using either, or both, of the earbuds Quick Attention Mode : Place your finger over the left earbud to turn the volume down for instant conversation Wearing Detection : Just take your earbuds from case and wear it, it?s ready, Intelligent auto-power off through IR sensor which detects earbuds? status Location recognizer : Artificial intelligence learns and suggests places where user often goes to such as home, work, station and gym Touch Controls : Control music tracks and volume, activate your voice assistant and take phone calls Colours Available: Black,Silver