This clip-on lavalier mic provides crisp, full-sounding voice pickup and excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. It offers excellent gain before feedback and suppression of background noise. An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. It operates on battery or phantom power.Audio-Technica AT831B Features:Clip-on lavalier mic also excels in acoustic guitar applicationsProvides crisp, full-sounding voice and instrument pickupOperates on battery or phantom power6′ (1.8 m) cable permanently attached to mic, TA3F connector at power moduleAlso available as:AT831R with phantom-only power moduleAT831c less power module; includes clothing clip and windscreen only; 10′ (3 m) cable, unterminatedAT831cW less power module; includes clothing clip and windscreen only; 55″ (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak wireless systemsAT831cT5 less power module; includes clothing clip and windscreen only; 55″ (1.4 m) cable terminated with TA5F connector