【RF vs IR】RF Radio frequency remote can work through wall or other obstacle with range of about 50 feet, but IR remote can not work through any obstacle. 【44 Key Remote】Easy for you to choose static colors, adjust brightness, turn On/Off, control modes: Flash, Strobe, Fade, RGB Smooth-change, Static. 【6 DIY models】The rich DIY model can meet your needs, you can set 6 DIY models for your light! 【4-pin Connector】Compatible with SMD 5050, SMD 3528, SMD 2835 RGB LED Strip lights with 4-pin connector. 【2-Ports Connector】(Package comes with 1pcs x 2-Ports remote controller) You can connect 1 or 2 rolls of led strips as you like. One remote can control 2 rolls of strips at the same time. RF Controller