The JBL Tune 680NC uses an on-ear fit and features a foldable design, making it straightforward to store and carry. It comes with a detachable, tangle-free cable and closed-back stereo speakers. The headphones are not designed for kids and offer no water resistance.
The JBL Tune 680NC covers a standard frequency range of 20 Hz to 20,000 Hz through 32 mm driver units, and supports both active noise cancellation and passive noise reduction for layered sound isolation. It also includes spatial audio support, broadening the listening experience beyond standard stereo. The drivers do not use neodymium magnets.
The JBL Tune 680NC is equipped with a rechargeable battery delivering up to 76 hours of playback, which reduces to 50 hours when active noise cancellation is enabled. It charges via USB Type-C and includes a battery level indicator to help track remaining charge. The battery is not removable, and the headphones support neither wireless charging nor solar power.
The JBL Tune 680NC supports both wireless and wired connectivity, using Bluetooth 6 with a maximum range of 10 meters and Bluetooth LE Audio. Fast pairing is included for quicker device setup, though NFC pairing is not supported. The headphones do not feature aptX, aptX Adaptive, aptX HD, aptX Low Latency, aptX Lossless, LDAC, LDHC, AAC, or Auracast.
The JBL Tune 680NC includes four microphones with noise-canceling capability, allowing it to function as a headset for calls. Controls are handled through an on-device panel rather than an in-line remote, and there is no mute function or in/on-ear detection for automatic playback pausing. Ambient sound mode is available for situational awareness, and multipoint connectivity supports two devices simultaneously. The headphones come with a one-year warranty.