The shure sm7db active dynamic microphone is a dynamic vocal microphone with a built in preamp that delivers smooth warm vocals with plenty of clean gain ideal for direct interface recording or simple vocal chains'. '.strtoupper('t')he preamp offers either 18 or 28 db of boost as well as a bypass mode for original sm7b like performance'. '.strtoupper('t')he sm7db also provides eq controls with bass roll off and presence boost controls'. '.strtoupper('t')he sm7db also has improved resistance to electrical noise hum and interference for cleaner clearer audio'. '.strtoupper('t')his new model is ideal for everything from professional studio recording home use podcasting and content creation like streaming or video voiceover.