AKG WMS45S-A

Perception Wireless 45: an accessible UHF solution for controlled wireless transmission

The Perception Wireless 45 series was designed to meet a very concrete need: to provide a reliable UHF wireless link that is quick to set up and suitable for everyday use without complicating the adjustment process. In this spirit, each element in the range operates on a switchable bandwidth (advertised at 30 MHz for the series), allowing you to choose an appropriate carrier frequency during installation.

When purchasing, the key point is to select the UHF band portion corresponding to your area and constraints. This model is delivered in Band A, with a specified operating range of 530.0 to 559.0 MHz, and offers access to 8 preset frequencies. The goal is clear: to help you avoid frequency conflicts while maintaining simple, consistent, and repeatable use from one event to another.

Who is it for and what for: fitness, coaching, speaking engagements, and events

This system is primarily aimed at users who need to speak while moving: group classes, sports coaching, demonstrations, events, multipurpose room presentations... The headset microphone is particularly relevant when you want to keep your hands free and maintain a stable voice level, even while moving around.

Thanks to its advertised frequency response of 40 Hz to 20 kHz and a signal-to-noise ratio of 105 dB, the Perception Wireless 45 aims for clear reproduction with intelligibility suited to spoken voice and instructions in dynamic environments. It is a smart choice if you are looking for a simple UHF system without engaging in complex RF configuration.

Key features: mobility, frequency selection, and battery life

Headset microphone + bodypack transmitter: a duo designed for freedom

The pack combines the C544L (headset microphone) with the PT45 bodypack transmitter. This combination is ideal for active presenters: the headset stays securely in place, while the transmitter remains discreet thanks to its miniature format. A windscreen is also included to help control wind noise and movement sounds, a real plus for sports applications.

Up to 8 preset frequencies: simple and effective in the field

The system emphasizes practicality: the SR45 receiver and transmitter feature a selector allowing you to choose, within the corresponding band, from fixed carrier frequencies (preset). Depending on the band portion, the number of available frequencies may vary; in this Band A version, you benefit from a choice of 8 frequencies, useful for adapting to an already equipped venue or avoiding an occupied frequency.

Construction and power supply: metal housing, integrated antennas, 10-hour battery life

For regular use, robustness and endurance matter: the system features a metal housing, integrated receiving antennas, and simple power supply. The transmitter operates with a single 1.5 V AA battery for about 10 hours of autonomy, while the receiver is powered via a supplied external power adapter. This allows you to chain sessions without multiplying accessories or handling.

Technical specifications

Category

Complete system

Capsule

electret

Frequency range	Band A 530.0 to 559.0 MHz	Power supply (transmitter)	1 x 1.5 V AA battery
Bandwidth indicated	29 MHz	Power supply (receiver)	external mains adapter (power supply unit included)
Frequency type	1 switchable frequency	Housing	metal
Available frequencies	up to 8 carrier frequencies (depending on the band); Band A: 8 frequencies	Receiving antennas	integrated
Modulation	FM	Transmitter	miniature
RF power	10 mW	Dimensions (transmitter)	60 x 74 x 30 mm
Audio bandwidth	40 Hz to 20 kHz	Dimensions (receiver)	200 x 190 x 44 mm
Signal-to-noise ratio	105 dB	Weight (transmitter)	60 g
Battery life	10 hours	Weight (receiver)	360 g