Description
The Audio-Technica ATW-901A/H System 9 VHF Wireless Headworn Microphone System is designed for live performances, presentations, and sound reinforcement applications requiring hands-free microphone operation. The system includes a tabletop wireless receiver, a bodypack transmitter, and a PRO 8HEcW headworn microphone. With analog VHF wireless technology and four selectable transmission frequencies, it offers a practical solution for performers, presenters, and other users who need convenient wireless audio.
Flexible Wireless Operation and Receiver Controls
The receiver features two fixed external dipole antennas and supports four selectable frequencies: 169.505, 170.245, 171.045, and 171.905 MHz. LED indicators provide channel, RF, and AF peak status information, while the adjustable squelch control helps mute audio when the incoming radio signal falls below the selected threshold. Balanced XLR and unbalanced 1/4-inch TS outputs provide flexible connectivity with compatible sound systems.
Headworn Microphone and Bodypack Transmitter
The included bodypack transmitter supports microphone and instrument inputs and features variable input trim, channel-selection DIP switches, and a Power/Mute button. It operates on two AA batteries and provides up to eight hours of battery life under specified conditions. The included PRO 8HEcW headworn microphone supports hands-free use, making the system suitable for stage performances, public speaking, and other professional audio applications.
Product Specifications:
Product Type: VHF Wireless Headworn Microphone System
Wireless Technology: Analog VHF
Diversity: Non-Diversity
RF Frequency Band: 169–172 MHz
Selectable Frequencies: 169.505, 170.245, 171.045, 171.905 MHz
Number of RF Frequencies: 4
Maximum Operating Range: 200 ft (61 m)
Maximum Transmitters per Band: 2
Number of Audio Channels: 1
Included Receiver: 1 Tabletop Receiver
Receiver Antennas: 2 Fixed External Antennas
Receiver Frequency Response: 80 Hz–13 kHz
Receiver Audio Outputs: 1 × 3-Pin XLR Balanced, 1 × 1/4-Inch TS Unbalanced
Receiver Indicators: Channel, RF, and AF Peak LEDs
Receiver Controls: Volume and Squelch
Included Transmitter: 1 Bodypack Transmitter
Transmitter RF Output Power: 10 mW
Transmitter Input: Hirose cW-Style 4-Pin Male
Transmitter Controls: Variable Microphone/Instrument Trim, Channel Selection, Power/Mute
Transmitter Battery Type: 2 × AA Batteries (Not Included)
Transmitter Battery Life: Up to 8 Hours
Included Microphone: PRO 8HEcW Headworn Microphone
Microphone Connector: Hirose cW-Style 4-Pin Female
Microphone Color: Black
Power Adapter: 12 VDC, 0.5 A, Center-Positive
Power Input: 100–240 VAC, 50/60 Hz
Package Weight: 2.55 lbs
Box Dimensions (L × W × H): 13.9 × 10.75 × 4.5 Inches

