Mackie MPA Bluetooth Adapter for MP Series In-Ear MonitorsThe MP-BTA Bluetooth Adapter makes it easy to experience the sound of MP Series In-Ear Monitors with untethered freedom. MMCX connectors make it a snap and Bluetooth 4.0 technology ensures great battery life and reliability. In-line mic and control allow for answering calls and controlling your music. Available individually or bundled with select MP Series In-Ear Monitors.Features:? Go wireless with your MP Series In-Ear Monitors? Effortlessly pairs with any Bluetooth-enabled device? Bluetooth 4.0 technology for excellent range and battery life? In-line mic and control for answering calls and controlling music playback? Swivelling, detachable MMCX connectors? Simple to set up and use? Available individually or bundled with MP Series In-Ear Monitors