Its 40mm dynamic drivers help pump out immersive HD audio all day long It provides a massive battery backup of upto 15 hours for a superior playback time. It has been ergonomically designed and structured as an on-ear headphone to provide the best user experience with its comfortable padded earcushions and lightweight design You can control your music without hiccups using the easy access controls, communicate seamlessly using the built-in mic, access voice assistant and always stay in the zone Tap into instant wireless connectivity with optimum Bluetooth V4.2 connectivity One can connect to boAt Rockerz 450 via not one but two modes, Bluetooth as well as AUX