Features: * * Made of material, strong and durable *Comparison with Deauther watch V3: *ESP07 changed to ESP07s: With an external 3dB antenna, you can search for more signals than V3. You can also add a larger antenna to the SMA connector. *Added Atmega32u4: I flashed the Leonardo bootloader. You can program it directly to bad USB. Two buttons (digital pins 9 and 10) can be used to execute different commands. I flashed a demo program. When the USB port is connected to the PC, pressing the DP9 button will open the cmd. Press the DP10 button. The notepad opens. You can reprogram it via the IDE. *Bridge: This clock has blank pads on the back. You can solder them to connect ESP8266 and atmega32u4. For example, if you solder the ICC pad, the clock could become a Wi-Fi duck. * Battery: 800mAh battery upgraded to 1000mAh There is more space inside for a larger battery. * Strap: canvas strap, upgraded to silicone strap. *Design: The 3D shell has been redesigned. A bottom acrylic plate has been added to protect this watch. * Charging: There are two USBs. Any USB can be used to charge the battery. But I do not recommend using both at the same time. Specification: *Name: D&B watch *Color: black * Battery: 1000mAh * Charging: Two USB * Quantity: 1 piece *Model:For Deauther Watch V4 Package Content:1 x D&B Watch 1 x USB cable. 3 x Acrylic Plate