The XPD2 Lavalier is easy to set up, offers professional full-range sound and 100-foot wireless operation, and is perfect for live performances, digital communications and mobile productions. Combining incredible audio quality, ease of use and micro-receiver technology, XPD2 makes adding wireless microphones to your audio production extremely easy and affordable. The RXD2 USB stick receiver connects directly to a PC, Mac or any computer Samson Expedition Series Portable PA system with USB wireless connection. The 3.5mm (1/8 ") output is an additional feature of the previous generation system and allows monitoring of headphones. The XPD2 handheld can be used with any device with an analog line input, including smartphones and other mobile devices. XPD2 Wireless delivers high quality audio via digital transmission. This type of wireless technology allows the transmitter to send an uncompressed signal to the receiver, giving your audio a higher signal-to-noise ratio compared to a conventional wireless system. The result is a performance that sounds as good as using a wired microphone.