<b> About us, Professional factory, welcome to our store for more choices with best price. What we pursue is your satisfaction of our service, not just for our goods. For any reason you are unsatisfied with our product at any time, simply contact support for exchange or refund. We will reply you about any question you ask within 24 hours. </b><br><br> <b> Specifications: </b><br><br> <br><b> Package Includes: Nodemcu Board + CH340G.</b><br><br> <b>Note: Manual measurement, with small error. Please check size in detail before purchase. Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness. </b><br><br> <br>We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution. <br>