Wireless Handheld Microphone. It Operates in the 1.9 Ghz Frequency. The WH-Link is for use with Anchorlink Series. <p>The WH-LINK is a wireless handheld microphone with a sleek and lightweight design. It operates on the 1.9 GHz frequency. The WH-LINK is powered by two AA batteries and operates approximately 6 - 8 hours with fresh batteries.<p>The WH-LINK handheld microphone is used with the AnchorLink series.