Audio Technica ATW-2120B Wireless Microphone System, Band I

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Imagine stepping on stage, confident that every word you speak will be heard with clarity and presence — that’s the kind of reliability the Audio-Technica ATW-2120bI Wireless Handheld Microphone System brings to your performance. Built around a rugged yet refined UHF diversity receiver, this system delivers up to 10 user-selectable channels and automatic frequency scanning to find the clearest signal instantly, so whether you’re leading worship, hosting an event, or rocking a gig, you get interference-free audio that commands attention. At the heart of the system is a handheld transmitter with a dynamic cardioid element designed to reject feedback and deliver rich, expressive sound that captures your voice with nuance and power.

What makes this wireless system a favorite among professionals and enthusiasts alike is how seamlessly it blends performance with practical features. True Diversity reception chooses the strongest signal from dual receiver sections to reduce dropouts, while the Tone Lock squelch system helps keep interference at bay so your audio stays clean and consistent. Balanced XLR and unbalanced 1/4" outputs give you flexible connectivity options for mixers, amplifiers, and PA systems, and rugged construction with a bright LCD display means it’s built to withstand the demands of touring, rentals, and daily use. With up to 300 feet of typical operating range and a switchable transmitter power output, this system adapts to your space with ease.

Whether you’re upgrading your stage rig or equipping a new venue, the ATW-2120B combines rock-solid wireless performance with intuitive control and durability. Its automatic frequency scanning and user-friendly design make setup quick even in busy RF environments, and the consistent sound quality ensures your voice always comes through with impact. Best of all, this versatile system is available at Haggerty’s Music, where you can get expert advice and gear you can trust.

Features / Specs

Overall System

• Operating Frequencies: UHF Band 1, 487.125 to 506.500 MHz
• Modulation Mode: FM
• Maximum Deviation: +/- 40 kHz
• Frequency Response: 100 Hz to 15 kHz (+1 dB, -3 dB)
• Operating Range: 100m, Typical (Open Range Environment w/ No Interference)
• Total Harmonic Distortion: <1% (at 1 kHz, +/- 20 kHz deviation)
• Operating Temp Range: 41-113^oF
• Number of Channels: 10 Total

Handheld Transmitter

• RF Power Output: High - 30mW, Low - 10mW (switchable) at 50 ohms
• Microphone Element: Dynamic Cardioid
• Battery Type: 2 x 1.5V AA Alkaline (Not Included) or 2 x 1.2V AA NiMH (Not Included)
• Battery life: High - 7 Hours (Alkaline), Low - 9 Hours (Alkaline)
• Dimensions: 9.13" Long, 1.89" Diameter
• Net Weight: 8.9 oz (Without Batteries)
• Accessories: AT8456a Quiet-Flex Stand Clamp

Body Pack

• RF Power Output: High - 30mW, Low - 10mW (switchable) at 50 ohms
• Battery Type: 2 x 1.5V AA Alkaline (Not Included) or 2 x 1.2V AA NiMH (Not Included)
• Battery life: High - 7 Hours (Alkaline), Low - 9 Hours (Alkaline)
• Dimensions: 2.60" x 0.89" x 3.63" 
• Net Weight: 2.9 oz (Without Batteries)
• Input Connections: Four-Pin Locking Connector
  • Pin 1: GND
  • Pin 2: INST INPUT
  • Pin 3: MIC INPUT
  • Pin 4: DC BIAS +9V
• Accessories: AT8456a Quiet-Flex Stand Clamp

Receiver

• Receiving System: True Diversity
• Image Rejection: 60 dB Nominal, 55 dB Minimum
• Antenna Input: BNC-Type, 50 ohms - Bias Voltage 12V DC, 60 mA, Each
• Dimensions: 8.27" x 6.39" x 1.73" 
• Net Weight: 35.3 oz (Without Accessories)