ITEM NAME:38 kHz Remote TSOP4838 DIP-3 IR Receiver Infrared Radiation Modules OHK Descriptionï ¼Å¡ Type: TSOP4838 IR Receiver Module. Operating Frequency: 38kHz. Directivity: 45. Operating Temperature Range: -25C to +85C. Supply Voltage Range: 2.7V to 5.5V. Opto Case Style: through hole. Size: 3cm x 0.5cm - 1.2inch x 0.3inch.(Approx.) Package Included:1*38 kHz Remote TSOP4838 DIP-3 IR Receiver Infrared Radiation Module.Type: TSOP4838 IR Receiver Module. Opto Case Style: through hole.