Shure SM-820A Professionl Wireless Microphone

SM-820A Professional mic has a longer Battery life of abut 6 hours non

stop using 9V battery. It produces a Clear original sound quality. Has a

very high sensitivity, wide range of direction & dynamic state,

less distortion rate, light weight & not easy destroyed. It is

widely used with the professional systems in a recording room, on a

professional stage or in some testing instruments. Has a high function

kinetic coil mouth piece. Has a steady all-direction antenna installed

& it can be adjusted to a suitable angle to receive the best signal.

In addition, it has a True diversity receiver filter of the RF, to

avoid those interference signal from band outside. It is als