ITEM NAME:1 pcs blue metal JDY-16 Bluetooth 4.2 module high-speed digital mode BLE me B7G9 1 pcs blue metal JDY-16 Bluetooth 4.2 module high-speed digital mode BLE me B7G9 JDY-16 Bluetooth 4.2 module high-speed digital mode BLE mesh networking low power consumption Through the transmission of serial port without byte restrictions Effective communication distance of 80 meters Communication speed 8K Bytes per second Support UART and IIC communication Color: blue Material: metal Operating temperature -40 ~ +80 Celsius Operating voltage: 1.8 ~ 3.3V Package Contents: 1x module 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..Through the transmission of serial port without byte restrictions. Communication speed 8K Bytes per second.