Description: Material: Experimental Board + Mixed AlloyColor: BlackChip Module: CP2102Working Temperature: -40 ℃ ~ +125 ℃Power Input: 4.5V ~ 9V (10VMAX), USB-poweredDrive Type: Dual high-power H-bridge driverCurrent: continuous transmission ≈70mA (200mA MAX)Standby: <200uASize: (L)X(W)4.8X2.5cm/1.89''X0.98''(appr.)Features:A great set of tools to develop ESP8266.ESP8266 has IO Pin.ESP8266 full IO mouth leads directly download without resetting.Open-source, interactive, programmable, low cost, simple, smart, WI-FI enabled.Greatly speed up your IOT application developing process.Notice:Please allow 1-5mm error due to manual measurement and make sure you do not mind before ordering.Please understand that colors may exist chromatic aberration as the different placement of pictures. Package included: 3 x ESP8266 CP2102 Development Board