The chip model: CH340GOutput voltage: 3.3VInput voltage: 5VWLAN-standard 802.11b / g / nPWM / I2C / SPI / UARTColour: multicolorMaterial: ABSSize: 10x6x3cmPackage Contents:1 * Weather Station KitOnly the above package content, other products are not included.Note: Light shooting 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.