The wireless handheld transmitter can be used to control all operating modes (dimming, tunable white, RGB, RGB+W) of the wireless multicolor receiver (FCMULTI4X6A). Several handheld transmitters can be programmed into one receiver. Since it is a 4-channel handheld transmitter, up to four zones can be controlled separately with one handheld transmitter, even if they have different operating modes. Operated via 2x AAA 1.5V batteries (not included).