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Audio-Technica ATW-902 System 9 VHF Wireless Handheld Microphone 169.505 to 171.905 MHz 888365852959 (Open Box)
Ships Internationally
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Product# J02656

Affordable, professional wireless handheld.

Audio-Technica's System 9 is a four-channel frequency-agile wireless system designed to provide rock-solid performance along with easy setup and clear, natural sound quality. Featuring sleek, stackable, contemporary styling, System 9 is available in handheld, headworn, guitar, lavalier and body-pack configurations. The system offers four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz).

Each System 9 configuration includes the ATW-R900 receiver and either a body-pack transmitter or handheld microphone/transmitter. The ATW-R900 is a non-diversity, single-channel receiver with advanced dipole antenna design for extended operating range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R900 also offers volume control along with AF Peak, RF and Power indicator lights.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCCs wireless microphone website at:

  • Easy operation and clear, natural sound quality
  • 4 selectable frequency-coordinated VHF channels
  • Balanced XLR and unbalanced 1/4¡± output jacks enable use with a wide variety of audio gear
  • Reliable performance and durable construction

Order now and add a physical element to your performance.


ATW-902 System 9 VHF Wireless Handheld Microphone

    Operating Frequencies VHF highband, 169 MHz to 172 MHz
    Modulation Mode FM
    Maximum Deviation +/-10 kHz
    Dynamic Range >/=90 dB (A-weighted), typical
    Total Harmonic Distortion <1% (at 1 kHz, +/-10 kHz deviation)
    Operating Range 200' (60 m) typical
    Open range environment with no interfering signals
    Operating Temperature Range 40 F (4 C) to 110 F (43 C)
    Battery performance may be reduced at very low temperatures
    Frequency Response 80 Hz to 13 kHz

    Receiving System Non-diversity, single-channel, dual antenna system
    Image Rejection 50 dB minimum
    RF Sensitivity 20 dBuV at 60 dB S/N ratio (50 ohms termination)
    Audio Output Nominal Output Level
    XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load)
    1/4" (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load)
    Power Supply 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply
    Dimensions 7.48" (190.0 mm) W x 1.82" (46.2 mm) H x 5.06" (128.5 mm) D
    Net Weight 12.0 oz (337 grams)
    Accessory Included Power supply

    RF Power Output 10 mW
    Spurious Emissions Following federal and national regulations
    Input Connections Four-pin Locking Connector
    Pin 1: GND
    Pin 2: INST INPUT
    Pin 3: MIC INPUT
    Pin 4: DC BIAS +9V
    Batteries Two 1.5V AA
    not included
    Battery Life 8 hours (alkaline)
    Depending on battery type and use pattern
    Dimensions 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D
    Net Weight 2.8 oz (80.0 grams)
    without batteries
    RF Power Output 10 mW
    Spurious Emissions Following federal and national regulations
    Batteries Two 1.5V AA
    not included
    Battery Life 8 hours (alkaline)
    Depending on battery type and use pattern
    Dimensions 9.91" (251.8 mm) long,
    2.11" (53.5 mm) diameter
    Net Weight 9.2 oz (260 grams)
    without batteries
    Accessory Included AT8456a Quiet-Flex stand clamp

Review Snapshot

by PowerReviews
Audio-TechnicaATW-902 System 9 VHF Wireless Handheld Microphone

(based on 1 review)

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Reviewed by 1 customer

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Great performer for the price

By THX1136

from Boone, Iowa

Verified Buyer

Comments about ATW-902 System 9 VHF Wireless Handheld Microphone:

Just used the AT this last weekend when doing SR for a local all school class reunion. The handheld was used for a vocalist leading a sing along and, also, as a pass around for members to announce their names etc. Did not stretch the distance to the edge - the receiver was 25 to 50 ft away from the mic at all times. Sound quality was clear and strong. Only one minor glitch to report which I attribute to some EMI most likely between the mic and receiver. Happened once and only once. While I suspect that a UHF based setup would have been a better choice (although I will be using this in a predominantly rural area - not someplace like the theater district in NYC); for the money this worked quite well for my needs.

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