Harman Kardon Soho II Headphones

Yes, the active noise cancellation feature requires power, so you will need to keep the internal battery charged to use that specific function. However, the headphones will still function as standard wired earbuds for audio playback even if the battery is depleted.

While they are marketed for live monitoring and studio use, they are primarily designed as consumer-grade in-ear headphones. They offer decent sound quality with 45mm drivers, but professional users might find they lack the flat frequency response and durability required for heavy-duty studio or DJ environments.

The Soho II NC uses a standard 3.5mm wired connection. If your smartphone lacks a headphone jack, you will need to use a separate 3.5mm-to-USB-C or 3.5mm-to-Lightning adapter to connect them.

The active noise cancellation is designed to reduce ambient background noise, making it useful for commuting or office environments. Keep in mind that as an in-ear model, the effectiveness depends heavily on achieving a proper seal with the foam tips, so you may need to experiment with the fit to get the best results.

The in-line microphone and playback controls are designed to be compatible with most standard 3.5mm audio devices. However, full functionality of the volume and command buttons can sometimes vary depending on the specific operating system of your phone or computer.