Bluefruit EZ-Link Bluetooth + Arduino Programmer (Original)

Bluefruit EZ-Link Bluetooth + Arduino Programmer is a regular 'SPP' serial connection client device that can be paired with any computer or tablet and appear as a serial/COM port (except for iOS, as it does not allow iOS SPP pairing). But here's the exciting part: Unlike other BT modules, the EZ-Link can automatically detect and change the serial baud rate. So, if you open the COM port on your computer at 9600 baud, the output will be 9600, 57600, or even 57600. Yep, it can even go as low as 2400. It supports the most common baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200, and 230400.