Its L1 Pro control in your pocket. With the L1 Mix app, you can access intuitive, wireless control of your Bose L1 Pro portable PA system. Adjust L1 Pro mixer settings during a gig from your phone or tablet, or even walk the room, hear how the mix sounds, and fine-tune as you go. Change volume, tone, and reverb settings in the app and watch the LED encoder on your L1 Pro move to match in real time — the mixer and app are always in sync. Plus, you have access to the entire ToneMatch library of custom EQ presets. With the L1 Mix app, you get the connectivity that empowers your performance, giving you greater flexibility for on-the-fly tweaks via channel-level controls that are easy to access and deliver immediate results. All so you can sound your best, connect with your audience, and simply perform.