JLab HBASTUDIORBLK4 wireless headphones bring you the freedom of movement and exceptional sound quality. Connect your device via Bluetooth and enjoy your favorite music, podcasts, or audiobooks up to 33 feet away. With a 30-hour battery life, you can listen all day without worrying about recharging. The headphones feature three EQ settings - JLab Signature, Balanced, and Bass Boost - so you can customize your audio experience. You can also activate Siri or Google Assistant with a simple voice command, and answer or reject incoming calls with the touch of a button.