Watch V3, with better performance and appearance than V1&V2, is wrapped by the 3D print transparent case, moreover, equiped with upgraded software system, which is easier to operate. WiFi Test Tool: installed with the latest ESP8266 Deauther software, the deauther watch can different secure tests for your WiFi networks, equiped with 5dB FPC antenna. NOTE: ESP8266 supports 2.4GHz only. Extensible: Deauther wathch V3 also can be used to develop your own software, it is indeed a ESP8266 development board, easy to operate. LONG WORKING TIME: for DSTIKE Deauther watch has a -in an 800mAh battery, the maximum working time of the WiFi Deauther wristband reaches 8 hours, also the battery can be charged while in use. Moreover, the watch is equiped with OLED display and a 3-way momentary switch. NOTE: the wifi deauther watch can be used only for testing and educational purposes on your own devices! Material:Metal + Plastic colour:black Package Contents: 1 * WiFi Deauther Watch V3 ESP8266 Programmable Development Board Only the above package content, other products are not included. Note: Light 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.