This is an addon board for the multitool, providing Wifi functionality in a uniquily compact and covert formfactor. All kits are delivered with a 3D printed case using black PETG. What makes it special: It comes in a unique "backpack" formfactor, hugging the snugly, fitting neatly in your pocket during operation. It also has a Micro-SD card slot to save captures or whatever else you can come up with. Other than that it behaves like the FlipperZero wifi debugger module and all guides fitting that board also apply to this kit. You can using the an external antenna jack. (The external antenna one has the antenna connector fitted to the chip as well as a small jumper set) and the supplied 3D printed case. (The external antenna one obviously includes an antenna connector) This project has a specific jumper set as well as a tiny antenna jack mounted on the board. Note: This product does not include for Depending on the batch, the appearance of the electronic components on the board may be different from the picture, but the functions are the same and do not affect use. version and Type: B-External antenna version, without Wifi antenna Material: PCBandelectronic componentsandPETG colour: Black Package Contents: 1 x Wifi Backpack - ESP32 Kit 1 x 3D printed case 1 x Wifi antenna 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.