Working voltage: 3.3V Number of pins: 7Pin Viewing Direction:Full viewing angle (IPS) GND:Power ground VCC:3.3-5.0V(DC) SCL :SPI clock line SDA :SPI data line RES :Reset interface DC :SPI data/ selection :Backlight control,default floating,low level off colour:blue Material:Metal + PC size:27.78*39.22mm LCD Size: 1.3 Inch Package Contents: 2 * 1.3 inch 7 Pin TFT Display 2 * 2 kinds of pin headers(not welding) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.