Water-resistant, Floating universal remote control. Functionality from inside the spa: Remotely operates spa jets and spa lights. Functionality from outside the spa: Remotely operates spa jets, spa lights and NEXSIS Wireless Stereo. - requires I-Watch Master Control module (01512-1032). Able to control SIS Stereo via programmable codes. Exclusive to the following spa models: 2004 to current Reflections Series, 2004 to current Bay Collection. Also works with 2007 D1 factory installed Poly-Planar stereos. For functionality inside the spa, the IR module (01564-0073) is required.