The JBL Tune By Harman 520BT Wireless Bluetooth Headphones offer pure bass sound for up to 57 hours with a frequency range of 20Hz-20KHz and a driver size of 40mm. These white headphones are suitable for studio monitoring, DJ, and live monitoring, featuring a foldable design, built-in microphone, and a rechargeable battery. With Bluetooth connectivity and a built-in microphone, these headphones provide a comfortable headband design and on-ear ear-pad style for immersive listening experiences.