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Description
Audio Technica ATW-901A/L System 9 Lavalier Microphone SystemDESCRIPTION ATW R900a receiver and ATW T901a body pack transmitter with omnidirectional Lavalier microphone. 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, head worn, guitar, lavalier, and body pack configurations. The system offers four
DESCRIPTION
ATW-R900a receiver and ATW-T901a body-pack transmitter with omnidirectional Lavalier microphone.
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, head-worn, 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-R900a receiver and either a body-pack transmitter or handheld microphone/transmitter. The ATW-R900a is a non-diversity, single-channel receiver with an advanced dipole antenna design for an extended operating range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R900a also offers volume control along with AF Peak, RF, and Power indicator lights.
- 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
CHARACTERISTICS
OVERALL SYSTEM SPECIFICATIONS
- Operating Frequencies: VHF high-band, 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
- Maximum Simultaneous Use (Recommended): 200' minimum
RECEIVER SPECIFICATIONS
- 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
- Operating Temperature Range: 40° F (4° C) to 110° F (43° C)
- 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
BODY-PACK TRANSMITTER SPECIFICATIONS
- 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Fruity body mist
Scent: 555 Strawberry + Aire, Size: 1 Fl Oz (Pack of 1), Scent: 555 Strawberry + Aire, Size: 1 Fl Oz (Pack of 1)
This is a great little travel-size body spray to keep in a beach bag, purse, or suitcase. The spray bottle is compact but still feels sturdy, and it’s super convenient for on-the-go use. The scent is pleasant, sweet, and fruity, and not overpowering at all. To me it has a warm fruity vibe that kind of reminds me of summer days as a kid eating popsicles. Nice for everyday wear if you want something light and easy, plan to reapply every 3 hours or so for maximum scent.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
This is a great ball for high energy dogs.
Color: Blue
I have a Belgian Malinois, so you can imagine the Maligator jaws. Just opened this today and let her play with it indoors. She LOVES IT. It wore her out and it’s a toy she can really stay focused on without needing me to throw or roll for her. It moves on its own! I supervised her play. I was hoping it was too big to get under the couch, but no. It goes right under it. I had to block off the gap so I didn’t have to keep getting it out from under for her. The outter “shell” is very durable! When she had resting moments, she chewed it pretty good - I could hear the material squeaking against her teeth. I was worried she was tearing it up, but nope! Not a mark on it. It’s easy to set up and operate. It needed charging before play. After hours of play, she was able to somehow unscrew the outter shell. This concerned me bc the smaller, inner ball mechanism came out but I saw it right away and was able to put it back together. So, make sure it’s screwed together tightly (which I thought I had done without breaking it) and check it from time to time to make sure it hasn’t loosened. This is a great ball for her incredible high energy drive. It gives her the work and fun play she needs to get tired, which I love. This toy is on the expensive end, but so far it’s worth it. Now we’ll see how long it lasts!
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Love love it
Color: Blue
Best dog toy ever. I have a 1 year old boxer who is full of energy (understatement). This ball has provided more entertainment for us both than any dog toy I’ve ever purchased. Charge holds well and has a very resilient shell. I love it. Worth the price.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Great ball for limited entertainment. Replaceable outer shell is an amazing option!
Color: Blue, Color: Blue
Bought this for our 45lb, ball-obsessed Dutch shepherd/pit bull dog mix. I had one of these years ago with the hard shell and couldn’t be happier with the new foam shell.
The new foam shell is much quieter and while our dog might put holes in it with his teeth, he doesn’t seem to ever pull pieces off.
For engagement level, he found it VERY interesting at first and was scared to grab it, but once he got over that he started holding it in his mouth even when it shakes and just tries to keep it.
Isn’t the best for fetch or anything as he has trouble letting it go when it is actively moving, but it makes him happy while he has it. We just make sure to monitor him while it is out.
The ability to change the outer shell and just buy a replacement for the shell instead of a whole new toy is a lovely feature that makes me very happy to continue buying from this company.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Great Interactive Option
Color: Blue
To start, I have been very happy with this purchase. A couple of key points for me are durability and being able to keep my dog's attention. I have had it for almost a year, just a month shy, and she hasn't managed to get through the foam outer shell even though she tries real hard to do so. Let's just say, she's hard to find toys for because of her habit of finding the point of failure where she can pick and gnaw at until the toy is no longer safe for her to have. With this toy, she not only found her match, but it also has her watching, waiting, and even stalking. Only one small issue has recently occurred: the motor has started having an issue where the charge doesn't hold, and it doesn't remain on afterwards. I have reached out to Cheerble directly to see about replacing it since I am still within their 12-month timeframe, and they responded right away.
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Reviewed in the United States on April 22, 2026
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