[ Deauther watch V4 - Bigger and more Powerful] upgraded watch deauther watch V4, it is a D&B watch, which is Deauther & Bad USB watch, now this V4 watch can not only disconnect wifi but also perform bad usb attack; With an external 3dB antenna it could search more signal than V3, also the larger antenna to the SMA connector can be added; Refer to our Deauther Watch V3 to understand more what is deauther     [Same Old - WiFi Test Tool] Installed with the latest ESP8266 Deauther software, the deauther watch V4 can perform different secure tests for your WiFi networks, equipped with 3dB antenna. Moreover it can be used to develop your own software, it is indeed a ESP8266 development board, easy to operate. NOTE: ESP8266 supports 2.4GHz only     [Extensible - 2 in 1] Added atmega32u4 to this watch, the V4 watch can now be a Bad USB watch and deauther one at the same watch, which is more powerful and capable than the former version DSTIKE deauther watches; There are empty solder pads at the back of this watch which can be soldered to connect ESP8266 with atmega32u4. For example if you solder IIC pads this watch could become a wifi duck     [Added Atmega32u4 - Bad USB] Flashed for Arduino Leonardo bootloader already, the D&B watch can be programmed as bad usb directly. Two buttons(Digital pin 9 and 10) could be used to execute different commands. Moreover, a demo program has been flashed as well. Therefore when bad usb port connects PC, press DP9 button cmd window will be opened. Press DP10 button Notepad will be opened. Which can be programmed via for Arduino IDE     [Improved Battery Capacity - 800 to 1000mAh] Compared to Deauther watch V3, this deauther and bad usb watch V4 has been upgraded the battery capacity from 800mAh to 1000mAh, which will have a longer battery life and the fun will last longer; Note: there are two usb ports on the watch, and each one could be used to charge battery, but do not suggest to use them at the same time          Material:Metal + Plastic     colour:Black          Package Contents:     1 x WiFi Deauther & Bad USB Watch          Only the above package content, other products are not included.     Note: Light shooting 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.