1 Set Infrared Remote Control IR Receiver Module Kits DIY Kit HX1838 for Arduino Raspberry Pi

Battery:CR2025 Button batteries(not included) Transmission Distance: up to 8m (depending on the surrounding environment, sensitivity of receiver etc) Effective Angle: 60° Static Current: 3~5uA, Dynamic Current: 3~5mA Remote size: 8.5 x 4 x 0.65cm/3.3 x 1.6 x 0.25inch (L x W x H)