The AKG Perception Wireless Vocal Set system includes an SR 45 receiver, HT 45 handheld transmitter, universal power supply with US/UK/EU adapter, SA 45 stand adapter, and one AA size dry battery. It is an ideal plug-and-play wireless solutions for musicians and small installed sound venues.

SR 45 Stationary Receiver 
The SR 45 Stationary Receiver delivers a diversity system, professional XLR and Jack outputs and the SMPS solution. The audio level and squelch threshold are adjustable on the receiver. It is a stationary receiver for use with all transmitters of the Perception wireless system. 

The SR 45 operates within a switching bandwidth of up to 30 MHz in the 500 to 560 MHz UHF carrier frequency range and offers up to 8 selectable carrier frequencies. 

HT 45 handheld transmitter 
The HT 45 handheld transmitter features a spring-steel wire mesh front grill to protect the dynamic transducer from the hardships of onstage use. Its cardioid polar pattern ensures maximum gain before feedback and makes your voice cut through any mix. It provides low handling noise sensitivity, high gain before feedback and brilliant sound quality, as well as a built-in wind and pop filter to reduce wind and breath noise. 

The HT 45 handheld transmitter operates within a switching bandwidth of up to 30 MHz in the 500 to 560 MHz UHF carrier frequency range and offers up to 8 selectable carrier frequencies. The transmitter uses an antenna integrated within the housing. 

Consumer Alert (for US users) 
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: The system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device.