rf 433mhz receiving module can learn up to 2 transmitter Detailed Product Description: Operating ... frequency315, 433 MHz specification43*26*12 Sensitivity>-85dbm The pin From left to right VT, D3, D2, D1, D0, +5V, GND ... , PaypalPackingpoly bag, blister package, carton box, or OEM packages rf 433mhz receiving module