The AirTurn QUAD500 is here for you, whether you need to turn pages in an electronic score, scroll a teleprompter or send wireless MIDI commands to your synth or DAW. With Bluetooth 5 built in, the QUAD500 offers four independent, programmable switches with up to a 250-foot range and over 200 hours of battery life on a charge. Best of all, the durable polymer construction will stand up to a busy performance schedule, and the silent, non-mechanical switching makes it ideal for studio or silent-stage work.