Fangrui Product Details Highperformance 48v Dynamic Preamp! For Reducing Background Noise And Enhancing Audioclarity. Made With Construction, This Preamp Is Designed To Withstand Daily Use And Provide Reliableperformance. For Contentcreators, Podcasters, Musicians, And Anyone In Need Of High-quality Audiorecordings. Use It For Liveperformances, Studio Recordingsessions, Videoshoots, Or Any Other Situation Where Clear And Crispsound Is Essential. Note: The Device Needs To Be Powered By Phantom 48v Different Batches May Have Different Screen Printing/appearance, But It Not Affect The Use Colour:black Material:aluminum Alloy Package Contents: 1 X Microphone Amplifier Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.