The Movo TCB2 XLR to TRRS Adapter is designed to allow you to connect a standard XLR microphone and a headset to your smartphone. With the XLR microphone, you can record high-quality audio straight from your phone. With the headphone jack, you can plug in a headphone to monitor the sound quality simultaneously while using a microphone. Without this feature, you have to remove the mic to review the recorded audio. To use the real-time headphone monitoring feature, you may need to download an app to allow headphone monitoring on your smartphone. The TCB2 Adapter features gold-plated connectors, impedance-matched TRRS cable for mobile devices, in addition to shielded construction. Includes: Movo Photo TCB2 XLR Female Microphone to 3.5mm TRRS Male Smartphone Adapter with Headphone Jack - Movo Photo 1 Year Limited Warranty Features: Allows you to connect your standard XLR (female) microphone connector to your TRRS (4-pole) smartphone Adds a Headphone Monitoring Input (Optional). To use this feature, you must use an app that allows headphone monitoring while using a microphone Phantom Power Blocking Impedance-matched TRRS cable for mobile devices Specifications: Compatibility: iPhone and Android Input Connector: 1x 3-Pin XLR Female Microphone Input Output Connector: 1x 1/8 / 3.5 mm TRS Female Headphone Output Device Connector Type: 1x 1/8 / 3.5 mm TRRS Male Length: 10 (25.4cm)