The RN52-I/RM116 is a Bluetooth Audio Module provides a highly integrated solution for delivering high quality stereo audio in a small form factor. It combines a class 2 Bluetooth radio with an embedded DSP processor. The module is programmed and controlled with a simple ASCII command language. This module complies with Bluetooth specification version 3.0. It integrates RF, a baseband controller, etc., making it a complete Bluetooth subsystem. It supports a variety of profiles including HSP/HFP, A2DP, AVRCP, SPP and iAP. It provides an UART interface, several user programmable I/O pins, stereo speaker outputs, microphone inputs and an USB port.