1、The device has an ESP32‑S2 module that recognizes it as a keyboard + USB stick. 2、HTTP file servers can use both upload and download functions. 3、It's also a microSD slot that can be recognized as an MSC SD card. 4、Use the ESP32‑S2 as a USB disk with wireless access, supports native USB. 5、Small and compact, portable and easy to carry Feature: 1.The device has an ESP32‑S2 module that recognizes it as a keyboard + USB stick. 2.HTTP file servers can use both upload and download functions. 3.It's also a microSD slot that can be recognized as an MSC SD card. 4.Use the ESP32‑S2 as a USB disk with wireless access, supports native USB. 5.Small and compact, portable and easy to carry Specification: Condition: 100% Brand New Material: ABS plasticOperating Voltage: 3.0 - 3.6V WiFi: 310mA (Peak) Light Sleep: 550 uA Deep Sleep: 20-235 uABoard Size: 17mm x 50mm/0.67 x 1.97in (without USB case) 19mm x 62mm/0.75 x 2.44in (with USB enclosure) ESP32-S2 Module Xtensa® single-core 32-bit LX7 microprocessor (up to 240MHz): 1. RISC-V ULP coprocessor 2. 128KB ROM and 320KB SRAM 3. 4MB embedded SPI flash memory Cryptographic hardware accelerators: AES, ECB/CBC/OFB/CFB/CTR, GCM, SHA, RSA and ECC (digital signature) Physical Security Features: 1. Transparent external flash and RAM encryption (AES-XTS) 2. Secure Boot feature ensures that only signed firmware (with RSA-PSS signature) is booted 3. The HMAC and digital signature modules generate SHA-MAC and MAC signatures using keys not accessible to softwareIntegrated 802.11 b/g/n WiFi 2.4GHz transceiver (up to 150Mbps) Integrated temperature sensor (-20°C to 110°C) How to put the ESP32-S2 into bootloader mode: Insert the WUD into the laptop Put the magnet close to the hall sensor (GPIO 0) Press the reset button and the WUD will now enter bootloader mode Package List: 1 * WiFi HID Injector