The Mipro MTM-90 (6B) Wireless Interlinking Transmitter is designed to allow wireless transmission in a multiple active power speakers to expand coverage and extend range. It offers a numeric LED display that lightens the UHF channels which can be auto-scannable. The MTM-90 (6B)’s modularized design allows easy installation, operation & trouble-free maintenance. With its wireless capability, this transmitter is ideal for parade routes, farmers markets, outdoor athletic event or religious services or anywhere you need to add more systems wirelessly without the mess of bulky speaker cables. The MTM-90 (6B) fits MA-708PA & MA-808PA wireless portable PA systems.