The side view Rohm RPM7138-V4 modules are IR remote control receivers. These are small-sized, light-weight, and have low power consumption. Center frequency is 37.9kHz. 5VDC supply voltage. 0.95mA typical consumption current. 600µs ON/OFF pulse width. Size: 5.85mm x 6.35mm x 4.55mm. Full length leads are bent at a right angle. Brand New-Retails for $74.00. Sold in a package of 80.