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AKG

AKG 3249H00010 Pro Audio Perception Wireless Lavalier Microphone

★★★★★4.3 (251 reviews)

AKG's Perception Wireless system delivers clean, low-noise lavalier audio for presenters and broadcast professionals who can't afford a bad take.

$310.00*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 19, 2026.Price and availability are subject to change.

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Overview

The AKG Perception Wireless system is engineered for the presentation and light broadcast environment — think corporate keynotes, educational settings, and house-of-worship applications where a speaker needs to move freely without sacrificing intelligibility. At its core is the CK99 L lavalier microphone, an omnidirectional condenser capsule that captures voice with the kind of open, natural character AKG has built its reputation on. Operating in the UHF 530.025–559.000 MHz range, the system steps above consumer-grade VHF wireless in terms of RF stability, delivering a cleaner signal path with less susceptibility to the interference that plagues cheaper systems in modern, Wi-Fi-saturated venues.

The SR45 receiver pairs with the PT45 body-pack transmitter in a straightforward architecture that prioritizes ease of deployment over feature density. The PT45 is compact enough to clip discreetly to a presenter's clothing, and its single AA battery dependency means road-case battery management stays simple. The SR45 outputs cleanly into a mixing console or audio interface — expect to set your gain staging conservatively to protect headroom, as the system lacks onboard dynamics control. For fixed installations feeding a house PA or broadcast chain, the SR45's rack-friendly design and universal power supply make it a low-hassle addition to any AV infrastructure.

Key Features

1 x SR45 Receiver

1 x PT45 Body-pack transmitter

1 x CK99 L Lavalier microphone

1 x Universal power supply with US/UK/EU adapter, 1 x AA size battery

530,025 - 559,000 MHz

Specifications

System Type
Wireless Lavalier Microphone
Receiver Model
SR45
Body-pack Transmitter Model
PT45
Lavalier Microphone Model
CK99 L
Included Power Supply
Universal with US/UK/EU adapter
Frequency Range
530,025 - 559,000 MHz

Pros & Cons

👍 Pros

  • The CK99 L omnidirectional capsule delivers even, natural pickup across a wide frequency range, reducing the need for aggressive EQ correction in the mix.
  • UHF operation in the 530–559 MHz band provides more stable RF performance in congested venue environments compared to VHF systems.
  • The PT45 body-pack runs on a single AA battery, making field battery management straightforward with no proprietary cells to source.
  • The SR45 stationary receiver's fixed-installation form factor integrates cleanly into AV racks and lectern setups without consuming stage space.
  • Universal power supply with swappable adapters makes this system genuinely travel-ready for international presentation work.

👎 Cons

  • No pad switch on the PT45 transmitter limits gain staging flexibility when placing the lavalier close to loud sound sources or high-SPL environments.
  • The 530–559 MHz frequency range is a fixed band — there is no frequency agility or scanning to avoid local RF interference beyond what the fixed range allows.
  • Omnidirectional polar pattern of the CK99 L means the system has no natural rejection of room noise, requiring a treated environment or careful EQ to maintain a clean noise floor.
  • No onboard compander or limiter controls visible on the transmitter, which can be a limitation when recording presenters with unpredictable dynamic range.
  • Single-channel system — running multiple simultaneous wireless feeds requires purchasing additional units and coordinating frequencies manually.

Frequently Asked Questions

The PT45 body-pack transmitter powers the CK99 L directly — no phantom power from the receiver is needed. The lavalier plugs into the transmitter, which runs on a single AA battery, keeping the signal chain self-contained and presenter-friendly.
The system operates in the 530.025–559.000 MHz UHF range. Before deploying in any fixed installation or broadcast environment, verify local frequency coordination — UHF spectrum allocations vary by region and can conflict with licensed broadcasters.
The CK99 L is an omnidirectional lavalier, which means it picks up sound from all directions equally. This makes placement forgiving — slight shifts in the capsule won't dramatically alter the sound — but it also means it will capture room noise and HVAC more readily than a directional lav would.
AKG rates the system for typical presentation environments. In open, unobstructed spaces the RF link is reliable, but dense crowds, metal structures, and competing RF sources (Wi-Fi, IEM systems) will compress effective range. Line-of-sight to the receiver antenna matters significantly.
Yes. The SR45 outputs a balanced or unbalanced audio signal suitable for feeding a mixing console, audio interface, or PA system input. Match your gain staging carefully — set the transmitter output level conservatively to preserve headroom and avoid driving the receiver's output into clipping.

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