Features:Easy to operate with 44 keys.Small size， very easy to install.Very good to RGB led light.Easy to accomplish color change and other modes.Specifications:Type:44Key Remote ControllerConnection mode: Common Anode(+)Input/Output: 12VBattery: CR2025 (not included)Color:20 Colors8 Light Pattern: Quick / Slow / Auto / Flash / 7 color fade change / 3 color fade change / 7 color jumpy change / 3 color jumpy change R / G / B increase and decrease control6 keys(DIY keys) for momories the colors what you preferred.Item weight: 49g / 1.75ozPackage size: 13.5 * 6 * 5cm / 5.31 * 2.36 * 1.96in ( L * W * H )Package weight: 71g / 2.51ozPackage list:1 * set of controller