boAt Rockerz 558 is an over-ear wireless headset that has been ergonomically designed to meet the needs of music lovers. The headphones come equipped with the latest Bluetooth v5.0 for instant wireless connectivity. Its powerful 500mAh battery provides playtime of up to 20 hours for an extended audio bliss. Its 50mm dynamic drivers help supply immersive musical experience to the user with immersive sound. The user can utilize the headset via dual connectivity in the form of Bluetooth and AUX. 50mm Dynamic Drivers: Immersive Audio Its 50mm dynamic drivers help pump out immersive audio all day long. Superior Playback: Up to 20 Hours of Music Bliss The mighty 500mAh battery capacity offers a superior playback time of up to 20 hours. Physical Noise Isolation It comes with a physical Noise Isolation feature for pure audio bliss.