Xvive U4R In-Ear Monitor 2.4 GHz Wireless ReceiverThe U4R In Ear Monitor 2. 4 GHz Wireless Receiver from Xvive is a single bodypack receiver for monitoring audio. It can be used when paired with an in ear U4 transmitter (sold separately) to monitor your audio performance with freedom from wires, for stage, theater, and rehearsal applications. The U4R receiver features six selectable channels for creating individual discrete mixes and is equipped with an operation range of about 90'. Housed in a