WiFi Compatible RGB+White Controller Kit: 4pcs RGBW Multi Zone Controllers + RF Remote - 4-zone RGBW LED Controller - Compatible with Smartphone/Tablet PC (Hub not included) : Amazon.in: Musical Instruments
Multi-Zone Single Color RF Radio Frequency Controller & Remote - SIRS Electronics, Inc.
Multi-zone PID controllers
Controller Amplifier 6 Source, 6 Zone - Russound - Digital World
Optimal Audio ZonePad 4 - Multi Zone Wall Controller for ZONE Series Mixers