The AKG Perception Wireless Presenter Set contains an SR 45 receiver, PT 45 bodypack transmitter, universal power supply with US/UK/EU adapter, CK 99 L lavalier microphone, and one AA-size dry battery. The sound of your voice is perfectly reproduced by the Perception Wireless Presenter Set. The inconspicuous CK 99 lavalier microphone clips on quickly and easily, and provides optimum intelligibility for theater performances, presentations, or talk shows. Requiring little attention, it allows you to focus 100% on your presentation. 

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 30MHz in the 500 to 560MHz UHF carrier frequency range and offers up to 8 selectable carrier frequencies. 

PT 45 bodypack transmitter 
The PT 45 bodypack transmitter lets you use both dynamic microphones and condenser microphones operating on a supply voltage of approx. 4V. Naturally you may also connect an electric guitar, electric bass or keytar. 

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

CK 99 Lavalier Microphone 
The CK 99 Lavalier Microphone is a low-profile, cost-efficient clip-on microphone for applications including houses of worship, lecturers, etc. Connects to AKG bodypack transmitters. 

The CK 99 L provides a natural sound, with a slight rise above 10kHz for added clarity. Its cardioid polar pattern and bass rolloff combine to suppress unwanted ambient noise.