-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 start, 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 designDesigned 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.