Podcasting Dual-Sided Digital Voice Microphone. Whether you're looking to create videos that jump from viewers' feeds, podcasts that pop with character, or interviews that listeners just have to share, in today's social-driven landscape it's critical to deliver truly professional results to stand out from the crowd. With iRig Mic Cast HD, it's never been easier to create engaging video and audio with just your smartphone or tablet. iRig Mic Cast HD is a pocket-sized microphone that easily attaches to your device and delivers big-sounding, professional-quality voice recordings anywhere.