Features:
DC 5V-24V input, RF Remote control,long distance,mini size,wire connection is simple and very easy to use
With various kinds of patterns,which are vivid and beautiful, Brightness is adjustable, Each controller can control up to 1024/2048 pixels
R/G/B keys can be reordered to match with your LED light if needed.
Prevent reverse connection of power supply. Protect lamp and controller. Save user setting automatically when power off.

Specifications:
Type: Mini 3 Keys/11 Keys/14 Keys/21 Keys RGB Controller
Supply voltage: DC 5V-24V / 5V
Working Temperature: -20~60℃
Battery Type: CR2025 (11 Keys/14Keys/21Keys)
Connecting mode: common anode
Maximum number of control points: 1024 pixels(21Keys)/2048 pixels(3Keys/14Keys)
Suit for: WS2811/WS2812B LED Strip Lights
Cautions: Please make sure the power supply voltage is match to your controller before you power it.
Size: (21Keys)29mm x 12mm x 3mm/1.14" x 0.47" x 0.11" (L x W x H)

Package Included:
1 x 5V/24V LED Remote Controller