The RB540 family of Bluetooth modules from Radicom Research support Bluetooth low energy (BLE) V3.0 and Classic standards. The series features DSP, stereo CODEC, flash memory, and an on board antenna to offer enhanced audio quality and minimize power while maximizing performance. The embedded DSP core is an open platform digital signal coprocessor to allow for advanced audio decoding, speech recognition, echo cancellation, and noise reduction. The series has transmission power up to 20 dBm and can connect to other Bluetooth devices in range up to 650 ft.
Bluetooth Basic Rate (BT 3.0) technology is combined to provide increased throughput, reduced battery consumption, and improved security. It also enables faster pairing and enhanced performance in the presence of interference from 802.11 Wi-Fi wireless devices and other 2.4 GHz radios. TrueWireless (TWS) technology allows for streaming A2DP music on the master device which then relays the audio stream to a slave device. The True Audio Data (TAD) protocol allows smart phones to transmit data to control devices during music streaming without affecting the audio signal.