Features: Weight: 51g ( Package included approx.) Size: L9.3 x W5.2 x H4 cm( package size ) 44 Keys IR Remote Controller for RGB LED SMD strip lights. Adopt IR remote to control the LED strip lights. It is able to control led strip light's color, brightness and flash modes.Low power consumption and long service life Specification: Working temperature: -20~60°C Connection mode: Common Anode Input Voltage: DC 12V Output Voltage: DC 12V Output: Three CMOS drain-open output Remote Distance: 5-10m Package Content: 1 x 44 Key IR Remote Controller 1 x Remote Receiver Bettery is not included because of the security reason and custom problem during transport, Bettery model is CR2025,Please buy it yourself in your local market.