Samson XPD2 Handheld is a 2.4 GHz USB digital wireless microphone system comprising the HXD1 handheld transmitter with a Q6 dynamic capsule and the RXD2 USB stick receiver. It offers plug-and-play operation on Mac and Windows, plus a 1/8" headphone/monitor output on the receiver for monitoring. The system supports two simultaneous transmissions over 100 ft line-of-sight and up to 20 hours of transmitter battery life.