Product Description Product LED Controller Model B4 Voltage 3V (2*AAA Battery) Transmission Frequency 2.4 GHz Transmitting Power 6 dBm Control Distance 30m Working Temperature -20~60°C Standby Power 20uA Dimensions 86mm (3.38 in) x 86mm (3.38in) x 19mm (0.73in) Features: Each zone needs one FUT038 (RGBW) or FUT039 (RGB+CCT) receiver for transmitting signals from the lights to the wireless panel controller. MiBoxer B4 panel remote controller allows you to change all light settings. The result is a stunning look and the ability to change color on request. It has the feature of choosing different range colors (16 million secondary colors including the adjustable white color temperature (CCT) in addition to the brightness dimming and switching lights at different zone. Each zone needs one FUT039 (RGB+CCT) receiver for transmitting signals from the lights to the wireless panel controller. Smart Touch Panel Remote LED Controller RGB+CCT Mi-Light B4 4-Zone, works with FUT039 Link: Turn off the power, then turn on again 5 seconds, press ”I” 3 times within 3 seconds. The Led light blinks 3 times slowly when it is done. Unlink: Turn off the power, then turn on again after 5 seconds, press “I” 5 times within 3 seconds. The Led light blinks 10 times swiftly when it is done.