The XPD2 Lavalier USB Digital Wireless System from Samson is a 2.4 GHz, portable wireless bodypack transmitter and lavalier microphone with a USB stick receiver. It can be used to capture audio for broadcast, presentation, live sound applications, and more.The XPD2 offers a simple setup, professional full-range audio, and 100' of wireless operation. The RXD2 USB stick receiver connects directly to Windows or Mac computers, or with any Samson Expedition Series Portable PA system (sold separately) that features a USB wireless port. A 1/8" output allows for headphone monitoring or connection to any device with an analog line input, including smartphones and other mobile devices.Furthermore, the XPD2 wireless system delivers audio via digital transmission, which enables the LM8 lavalier microphone and PXD1 bodypack transmitter to send an uncompressed signal to the receiver. The result is a greater signal-to-noise ratio when compared to a traditional wireless system, and a performance that sounds as good as using a wired microphone.