The S-10S Single Channel Strobe Controller by ADJ, durable strobe control. With the Red LED display showing your Flash rate, for great strobe effects. Control up to 6 ADJ Super Strobes, S-100A's & Snap Shot II's with your ADJ S-10S. The S-10S Single Channel Strobe Controller by ADJ, durable strobe control. With the Red LED display showing your Flash rate, for great strobe effects. With the modes including Flash (manual), Audio (Sound Active) or Stand-by (Blackout) and the Strobe Speed control knob, make sure to have the superior control of the S-10S Single Channel Strobe Controller from ADJ. An internal microphone (for use with Audio mode) makes this unit the complete setup when you are looking for a Single Channel Strobe controller.