Description: Working voltage: 3.3-5V Resolution: 128 x 64 Display area size : 29.4 x 14.7 mm/ 1.16 x 0.8inch Interface type: 4-wire SPI, IIC interface Number of stitches: 7 stitches Specification: Material: Material Product detailed size : 35.4 x 33.7mm/ 1.39 x 1.33inch Operating temperature: -40?~70? Package Includes: 1 Piece 1.3inch OLED display module