SKU: 64186900275

Audio-Technica ATW-2120CI Wireless Handheld System

Sale price$256.05 Regular price$284.50
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Description

Audio-Technica ATW-2120CI Wireless Handheld SystemAudio Technica's second generation 2000 Series is a 10 channel frequency agile UHF wireless system designed to suit a variety of applications, including MI live performance, fixed installation, public address, A V rental houses and places of worship. It offers all the advantages of a high quality, professional wireless system at an extremely affordable price. New professional features switchable antenna power. Includes ATW R2100a receiver and ATW

Audio-Technica's second-generation 2000 Series is a 10-channel frequency-agile UHF wireless system designed to suit a variety of applications, including MI/live performance, fixed installation, public address, A/V rental houses and places of worship. It offers all the advantages of a high-quality, professional wireless system at an extremely affordable price. New professional features switchable antenna power. Includes ATW-R2100a receiver and ATW-T220a handheld cardioid dynamic microphone/transmitter. Offering 10 selectable channels in one of two UHF frequency ranges and True Diversity UHF wireless technology, the 2000 Series features automatic frequency scanning. At the touch of a button, this function automatically determines and sets the best available frequency. Any of the 2000 Series’ 10 channels may be used together without any frequency coordination problems or group selection issues. The 2000 Series also incorporates Audio-Technica's digital Tone Lock™ squelch plus an easy-to-read LCD information display.

Features

  • Serious advances in affordable professional wireless
  • Clear sound quality and rock-solid, dependable performance
  • Automatic frequency scanning
  • 10 compatible user-switchable channels in UHF frequency range
  • Antenna power available for powered antennas & other in-line RF devices
  • True Diversity operation selects the better signal from the two receiver sections, reducing dropout
  • Tone Lock™ tone squelch system fights interference

Specifications

  • Operating frequency: 487.125 to 506.500 MHz
  • Number of channels: 10 total
  • Modulation mode: FM
  • Maximum deviation: ±40 kHz
  • Dynamic range: > 110 dB (A-weighted), typical
  • T.H.D.: < 1% (at 1 kHz, ±20 kHz deviation)
  • Operating range: 100 m (300') typical; open range environment with no interfering signals
  • Operating temperature range: 41º F to 113º F (5º C to 45º C)
  • Frequency response: 100 Hz to 15 kHz (+1 dB, -3 dB)

Receiver Specifications

  • Receiving system: True diversity
  • Image rejection: 60 dB nominal, 55 dB minimum
  • RF sensitivity: 20 dBuV at 60 dB, S/N ratio (50 ohms termination)
  • Antenna input: BNC-type, 50 ohms
  • Bias voltage 12V DC, 60 mA, each
  • Power requirements: 12-18V DC, 500 mA
  • Dimensions: 8.27" W x 6.39" D x 1.73" H (210.0 x 162.2 x 44.0 mm), not including BNC connectors or feet
  • Maximum output level: XLR, balanced: +9 dBV; 1/4" (6.3 mm), unbalanced: +4 dBV
  • Balanced audio output attenuator: Two position switch 0 / -12 dB
  • Accessories included: Two flexible UHF antennas, AC adapter (country dependent), rack-mount adapters

Handheld Transmitter Specifications

  • RF power output: High 30 mW; Low 10 mW (switchable), at 50 ohms
  • Spurious emissions: Following federal and national regulations
  • Microphone element: Dynamic cardioid
  • Batteries: Two 1.5V AA, not included
  • Battery life: High 7 hours (alkaline), Low 9 hours (alkaline) depending on battery type and use pattern
  • Dimensions: 9.13" long, 1.89" diameter (232.0 x 48.0 mm)
  • Accessory included: AT8456a Quiet-Flex™ stand clamp

Product Details

Brand Audio-Technica
Model ATW-2120CI
Part Number 242-4451
Unit of Measure Each
Weight 5.7
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 64186900275

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4.6 ★★★★★
Based on 5 reviews
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Product Reviews
M
Matt M.
Pawtucket, US
★★★★★ 5
Decent Accessory Kit
Size: Eufy E25 Omni / E28 Omni E28, Size: Eufy E25 Omni / E28 Omni E28
This is a decent accessory kit I got for my E28! This kit comes with so many of the parts I needed to keep my E28 up and cleaning well. The accessories each fit my bot very well - the roller brush slid on with no issue and it didnt bind in any way. The knap on the brush is decent (a bit knappier than the OEM). This is nice because I have textured tile so a better knap will help clean inside the nooks and crannies. The kit comes with a lot of the needed items for the bot. One negative (but I didnt take away a star because this can happen in others as well) was that the cardboard on the dust bag didnt have enough glue to keep the bag on the stock board - it tore away super easily which was a bummer to lose a whole bag. Not the end of the world, but be carful inserting the bag properly to avoid tearing it away/open. All in all this is a decent kit and is a fraction of the price of others. Additionally, it is one of the least expensive kits on Amazon, which is nice - because we all could stand to save a buck or two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
T
TSR
Pawtucket, US
★★★★★ 5
Eufy Replacement Parts
Size: Eufy E25 Omni / E28 Omni E28, Size: Eufy E25 Omni / E28 Omni E28
The 14-piece replacement parts for the Eufy E25 Omni made a huge difference. It came with a roller mop, roller bushes, air filters, and dust bags. I hadn’t replaced any of my parts for quite a while and the vacuum was starting to not work very well. I ordered this set hoping for the best and was really impressed by the quality of the parts. Everything worked beautifully and installation was a breeze. After just a few seconds I replaced everything that needed to be changed and was scheduling for a cleaning. The new parts made a big difference in how well the vacuum performed and I couldn’t believe how much cleaner the floor was. I am totally happy with my order and will continue to use these parts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
U
Verified Purchase
UberConsumer
Boise, US
★★★★★ 1
Don’t buy
Size: Eufy E25 Omni / E28 Omni E28
Black roller brush doesn’t fit. Quality is not the same as eufy. The filter doesn’t have as many pleats ergo doesn’t filter as well.
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Reviewed in the United States on March 8, 2026
C
ChknMom
Massapequa, US
★★★★★ 5
Perfect Fit for Eufy E25 - Great Way to Refresh Your Vacuum
Size: Eufy E25 Omni / E28 Omni E28
This replacement kit worked perfectly with my Eufy E25 robot vacuum/mop. All of the parts fit as expected, and it was nice to be able to swap everything out at once rather than replacing pieces individually. After installing the new brush, mop, filters, and other components, my machine is running noticeably better. Super easy to do. The set includes a good assortment of replacement parts, making it a convenient way to refresh your vacuum and keep it working efficiently. A great value and an easy way to extend the life and performance of your robot vacuum.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
K
KC
Los Angeles, US
★★★★★ 5
Complete Replacement Set
Size: Eufy E25 Omni / E28 Omni E28
This replacement parts kit is a convenient way to keep a compatible robot vacuum running efficiently without having to source each component separately. The included rolling brush and side brushes help maintain strong cleaning performance by picking up debris effectively, while the filters support proper airflow and dust capture. The dust bags are a useful addition for keeping the self emptying system working smoothly over time. The roller mop also fits well and helps maintain the mopping function without needing frequent replacements. Having a full set like this makes routine maintenance much easier and helps extend the overall lifespan of the vacuum.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

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