This user guide is for the nRD24V1 headset reference design, a voice quality wireless headset for Voiceover IP (VoIP) applications. The quality of the audio in this design is the same as the audio quality in telephony.This user guide describes the nRD24V1 system, HW modules and gives guidelines on how to take this referencedesign and build it into a headset application for a finished product.The nRD24V1 consists of a USB dongle and two application boards with a radio module mounted. You canestablish a full duplex voice link between one application board and the USB dongle or between the twoapplication boards.