AKG WMS40 MINI Vocal Conjunto sem fios US25D: 540.400MHz

AKG WMS40 Mini Vocal Set US25D — Plug-and-Play UHF Wireless Microphone for Vocalists and Presenters

This compact UHF wireless microphone system is built for singers, MCs, and house-of-worship speakers who want fast setup and clean vocal sound without complicated menus. Operating on the dedicated 540.400 MHz band, it pairs the HT40 Mini dynamic handheld transmitter with the lightweight SR40 Mini receiver and ships ready for use worldwide thanks to its universal switched-mode power supply. Solo performers and small event organizers who need reliable wireless freedom at an accessible entry-level price will recognize the set as the right choice.

Standout Features of the Wireless Vocal System

What sets this system apart is its combination of an integrated auto-squelch circuit and a fixed-frequency design, which together deliver the industry's most forgiving plug-and-play experience. The HT40 Mini handheld is built around a dynamic cardioid capsule tuned to maximize gain before feedback, while the SR40 Mini receiver sits in an ultra-compact housing engineered by AKG for unobtrusive placement on stage or in a rack.

Wireless Frequency and Transmission Performance

The dedicated 540.400 MHz band gives users a clean slice of the UHF spectrum with the low interference profile that fixed-frequency systems are valued for. AKG publishes signal-to-noise and self-noise figures of 80 dB for the receiver, so vocals arrive at the mixer with the detail the WMS40 Mini earned its reputation for in live sound.

• Carrier Frequency: 540.400 MHz — fixed UHF band ready to transmit without frequency coordination.
• Modulation: UHF wireless — robust signal penetration through walls and around small stages.
• Channels: 1 — single-channel receiver paired automatically with the bundled transmitter.
• Signal-to-noise reaches 80 dB, which keeps hiss out of quiet vocal passages and spoken-word segments at the typical mixer gain.

Microphone Capsule and Transmitter Design

The HT40 Mini transmitter houses a dynamic cardioid capsule that focuses on the singer's mouth and rejects bleed from stage monitors and instruments. A unidirectional pickup pattern is specified in the manufacturer's technical documentation. Mute control on the transmitter handle lets performers silence the mic between songs without powering down, and a single on/off switch keeps operation simple for less-technical users.

• Capsule Type: dynamic with cardioid polar pattern — provides feedback resistance in tight monitor setups.
• Transmitter: HT40 Mini handheld — durable chassis engineered for daily touring and rental use.
• Receiver: SR40 Mini stationary unit with 6.35 mm jack output — connects directly to mixers, amplifiers, and portable PA systems.
• The 6.35 mm (1/4 inch) unbalanced jack at the back of the receiver routes signal to mixers and PA systems, with a volume knob taking output from mic level up to line level.

Power Supply, Battery Life, and Setup

A single AA battery powers the HT40 Mini transmitter for 30 hours, which is exceptional in this wireless class and translates into real cost savings for venues and mobile DJs. The receiver is powered by the included switched-mode universal supply and ships with EU, UK, US, and AU adapters so the set can travel anywhere the tour schedule demands.

• Transmitter Battery: 1 x AA (included) — commonly available cell delivers up to 30 hours of on-air time.
• Receiver Power: switched-mode universal supply — supplied with EU/UK/US/AU plug adapters.
• Setup Time: plug and play, "up and running in a second" — no frequency scan or pairing step required.
• The package includes the SR40 Mini receiver, HT40 Mini handheld transmitter, universal power supply with four regional adapters, AA battery, and stand adapter, so you are on air the moment the box is opened.

Who This Vocal Wireless System Is For

Solo singers, karaoke hosts, fitness instructors, auctioneers, and small-church worship leaders trust this handheld wireless set whenever they need it to work the moment it is plugged in. It suits performers who value long battery life over frequency agility, and venues that need an inexpensive, low-maintenance wireless backup that integrates with mixers and portable PA systems via a standard 1/4 inch jack.

AKG Heritage and the WMS40 Mini Line

For more than 65 years, AKG has shaped the sound of recording studios, broadcast rooms, and live stages around the world. On the gig, that translates to one AA battery, one cable to the mixer, and a transmitter marked with the AKG name that any singer can hand to the next performer between sets.