The Movo DOM1 Lavalier Microphone is a lavalier, clip-on microphone that plugs into the handle of the 3.5mm TRS devices. The 4' long cable and omnidirectional pickup pattern allows you to capture crisp, sharp audio to bring your video to life. Just plug-and-play! No batteries required. All Movo products are protected by the 1 year Movo Photo manufacturer warranty. Our responsive and friendly customer support team is based in the US, and standing by to help you with any questions.