-plated circuit materialRed 2. 4g antenna, the signal is more stableUnique gamepad looks novel and cuteesp32 s2 chip, kill all firmwareDevelopment board, Python language development boardMaterial: PCBColor as shown 9. 00 plug-free esp32 KEY S2 finished product tossing a USB flash drive tossing a USB flash drive non-8266Steps for usage:Link to wifi and enter the ~ guide, it is not convenient, it is necessary for playersIt can generate a WiFi signal, and the built-in U disk is automatically mounted, without the need to prepare another U disk, which greatly simplifies the process and eliminates the of plugging and unplugging the U disk. How to use: plug in the machine to , connect to the wifi of the module. Go to the guide. The time you turn on the inflator, the wifi will automatically connect. Beautiful appearance finished product, genuine chip Designed for 9. 00 system, 't ask about 9. 03, it can't be used. Package Contents:1x PCB BoardOnly the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Please allow slight errors due to manual measurement. Please make sure you don't mind before bidding. Color may vary depending on your monitor, please understand. Note: Hello, please pay attention to your shipping address when purchasing products. If your delivery information (e.g. name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly