Check the listing for details. SONY Remote Control Unit RM-B150 RMB150 Used. Condition: Used, Made in Japan. Listed at 500.00 USD. The SONY Remote Control Unit RM-B150 RMB150 is a professional-grade control unit designed for rack-mounting, offering convenient remote control capabilities. Made in Japan by Sony, this model is ideal for managing audio and video equipment with precision. Its compact form factor makes it easy to integrate into existing setups, providing a seamless user experience. Perfect for professionals in the AV industry looking for a reliable and high-quality control unit. Works when plugged in and has been well cared for.