With elegant shape and clean sound make GS90 suitable for recording various instruments in concert halls and theaters. The GS90s has two switches: the 10dB attenuation switch and the low frequency roll-off switch on it's body. So good its function of use and width of applications GS90 and GS90s, both of which features four directional characteristics capsules: omni-directional,wide-angle cardioid, cardioid, and hyper-cardioid. They are exchangeable to meet different environments and needs.