This is IR Controller (Infrared Remote Control) which you can easily make a remote control projects compatible with Arduino IR receiver, this remote control provides 17 buttons flexibility to control devices within a range up to 8m, and compatible to a generic any IR receiver. Features, Battery: CR2025 Button batteries (supplied) Transmission Distance: up to 8m (depending on the surrounding environment, sensitivity of receiver etc) Effective Angle: 60 Degree, Static Current: 3-5uA Dynamic Current: 3-5 Supply Voltage 2.7V - 5.5V Remote size: 8.5 x 4 x 0.65cm - 3.3 x 1.6 x 0.25inch - L x W x H, Package Content: 1x IR Remote X1 IR Receiver Module 3x DuPont Wire.