The JBL Live 660NC headphones are a high-quality audio product suitable for studio monitoring, DJing, and live monitoring. They feature 32mm drivers and a frequency range of 20Hz-20kHz, with active noise cancellation and adjustable headband. The headphones are wireless, with Bluetooth connectivity, and also feature a 3.5mm jack and USB-C connectivity. The headphones are foldable and have a built-in microphone, making them perfect for on-the-go use.