ITEM NAME:5PCS 38 kHz Remote TSOP4838 IR Receiver Infrared Radiation Module#VBX 100% Brand new and high quality. 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..Type: TSOP4838 IR Receiver Module. Size: 5cm 2cm 1cm. Opto Case Style: through hole.