Product Name:for BT Nano 3 Operating Voltage:5V Working Current:MAX~87mA(5V) Bluetooth Low Energy:Supports WiFi:Supports. It be turned on automatically only when upgrading the firmware of the module itself. Bluetooth Automatically Turns Off: Enabled by default, the module automatically detect the / disarmed status of the FC. During the flight of the drone, the Bluetooth function be disabled to prevent other wireless devices from being interfered by the Bluetooth signal. Communication Port:UART Baudrate:115200 BT Switch Pad:The Bluetooth function be disabled when it receives a Low signal.In the BT Switch section of the manual, you can learn about the detailed instructions Power Indicator:Flashing white: Indicates that the UART communication with FC is abnormal, please check whether the wiring and settings are correct. Working Status Indicator: Flashing white: Indicates that the UART communication with FC is abnormal, please check whether the wiring and settings are correct. Solid White: Indicates that the communication with FC is normal, you can use the App for wireless parameter adjustment Flashing green: Indicates that the wireless signal is being connected Solid Green: Indicates that the connection with the App has been successful Size :14 x 11 x 0.8mm Weight:5g Add bluetooth functionality to any quad with the for BT Nano 3. This adapter lets you change ESC and Flight Controller settings wirelessly with the for app! Material: Metal + Plastic Color: As shown Different batches have different printing characters. Do not use it with care. Package Contents: 2 x Bluetooth module 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.