The JBL LIVE 670NC is a pair of closed-back on-ear headphones designed for those who want a versatile audio experience throughout their day. They feature 40 mm dynamic drivers that deliver a frequency response from 20 Hz to 20,000 Hz, which expands up to 40,000 Hz when you switch to the included 1.2 m analog cable. To help you focus in noisy environments, these headphones use True Adaptive Noise Cancelling powered by four noise-sensing microphones, while the Smart Ambient feature allows you to stay aware of your surroundings without removing the headset. Connectivity is handled by Bluetooth 5.3, supporting AAC and SBC codecs and offering a 10-meter range. You can easily switch between two devices thanks to the multipoint connection, and the integration of Personi-Fi 2.0 and JBL Spatial Sound helps tailor the audio to your specific hearing. The lightweight 219 g frame is balanced for comfort, and the white finish gives them a clean, modern look. Battery life is a standout feature, providing up to 65 hours of playback with noise cancelling off, or 50 hours when it is active. If you are in a rush, a quick 5-minute charge via the USB Type-C port gives you another 4 hours of music. These headphones also include convenient additions like auto play and pause, voice assistant support, and future-ready LE Audio compatibility via updates, making them a practical choice for commuters and students.