Bluetooth 5.0 Technology For Effortless, Reliable Connectivity Including Aac And Aptx Low Latency Codec Support 30-Hour Battery Life With Usb-C Fast Charging, Frequency Response (Microphone) 80 Hz To 6,000 Hz (-3 Db) Intuitive Controls Including Virtual Assistant Button For Siri And Google Assistant Sennheiser App Support Providing An Equalizer, Podcast Mode And Firmware Updates Classic Sennheiser Minimalist Design Crafted From High-Quality Materials For Outstanding Durability