Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 1. Suitable For Firmware Burning Test Of ESP-12S/12F/12E/07S/07/01S/01 And Other Modules 2. Suitable For ESP32-C3-12F Firmware Burning Test 3. Support One-Click Download Function Of Firmware 4. Safe And Reliable, Small Size And Long Service Life 5. It Also Has Power Indicator Light, Programming Indicator Light, And Serial Communication Indicator Light; It Leads To All Io Ports And Can Be Used As A Minimum System Development Board Or A Fixture For Small Batch Programming. Type:Burn Downloader Model:ESP8266 ESP32-C3-12F Writer Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:Black Material:PCB Size:About 49x46mm Package Contents: 1 * Programmer Module Only the above package content, other products are not included. Note: Light reflection 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.