MTB40S is a compact wideband plug-on transmitter designed for pro wireless microphone applications. It offers up to 232 MHz bandwidth across 470–1160 MHz, with selectable RF power (20 mW, 20L mW, 50 mW, 100 mW). Features include dual PA with phase canceling for intermodulation-free operation, wideband and narrowband modes, ENR/ENC companding, integrated limiter, P48 phantom power, IR management, OLED display, and 2 AA cells (Alkaline, NiMH or Lithium).