With 40mm Drivers get ready to immerse in HD auditory experience with super extra bass to get the day going Plug into your rhythm with style via the wireless Bluetooth headset and carry the vibe wherever you go Stay immersed into Nirvana for extended durations with a playtime of up to 8 hours, Charging Time: 3 hours, Frequency Response 20Hz-20KHz Its lightweight and ergonomic design offers the comfort and ease while you listen to your favourite artists and have fun The easy access integrated controls with built-in mic offers a smooth user experience and hands-free communication on the go Stay connected to your sound via not one but two modes: Bluetooth as well as AUX