Black over-ear headphones with microphone and inline controls, connected to a USB dongle.

AC-304TR

USB Training Headset with AI Noise Cancelation

Built for contact center training and noise-free calls, the AC-304TR uses AI Noise Cancelation and secure Bluetooth pairing so coaches can monitor or join calls instantly while ensuring crystal-clear, private conversations.

Superior Call Quality

AI Noise-cancelation minimizes background chatter, HVAC, and urban noise for clear customer communication.

Dual-microphone array: unidirectional boom mic and omnidirectional earcup mic
Microphone frequency range: 100 Hz to 16,000 Hz
Voice frequency range: 20 Hz to 6,800 Hz
Selectable mic source for agent or coach via controller

Platform Compatibility

Works with all audio and video conferencing platforms, including Microsoft Teams, Google Meet, Genesys Cloud, Twilio, NICE CXone, Amazon Connect, 8x8, Five9, Talkdesk, RingCentral, Sanas, and Avaya.

All-Day Comfort

Weight: 76 g (without cable/dongle), 120 g (with cable/dongle)
Protein leatherette earpads (18 mm thickness, ultra-soft)
Silicone headband (1 mm thick, 18 mm wide)
Lightweight, durable construction is comfortable for all-day use

In-line Controls and Connectivity

USB Type-A connection for plug-and-play operation
In-line controller with volume up/down and mic mute/unmute (LED indicators)
Bluetooth pairing button with LED indicator for HS-1500BT II coach headset
Mic select button with LED indicator for agent/coach selection
Cable length: 5 ft headset to dongle, 3 ft dongle to USB

Technical Specifications

Microphone frequency range: 100 Hz to 16 kHz
Maximum peak volume: 102 dB
Audio tone volume: 67 dB
Operating temperature: –10 °C to 50 °C
Headset pressure: 1.4 N to 1.5 N
Power: 5 V DC, 100 mA typical
Certifications: CE, FCC, ICES-003, WEEE, RoHS, CA65

Part of Our Wireless Agent Assist Solution

The AC-304TR, worn by agents, securely connects via Bluetooth to the coach’s HS-1500BT II wireless headset, allowing the coach to listen or take over a call at the press of a button. Learn More.

Included in the Box

AC-304TR headset and Quick Start Guide (QSG). One-year warranty with US-based support.

Datasheet | Support

Contact Sales

1 Minute Saved Per Call = $250,000+ Per Year

Why Every Minute Counts in Call Centers

Minimalist black and dark blue headphone icon with a sleek design.

1,000 calls/day

A stopwatch with a black outer rim, a dark blue face, and a black hand pointing straight up, indicating zero seconds.

1 minute saved per call

A white dollar sign inside a dark blue circle, centered on a black background.

$1,000/day saved

Minimalist illustration of a digital alarm clock with a rectangular display and six circular buttons.

$250,000+/year

This cost includes agent wages, telecom usage, infrastructure, and opportunity cost of handling fewer calls per hour.

Top-down view of a meeting with eight people sitting around a table, each using a laptop, wearing headsets, and connected to an agent and coach for support.

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Experience Powerful Environmental AI Noise Cancellation

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Specifications

USB-A
Over the head and adjustable
Main: -42 dBV Pascal +/- 4dB

ENC: -32 dBV Pascal +/- 4dB
Mic Mute, Bluetooth, Power, and Mic Source

8 feet
USB-A equipped computers and laptops
In-line volume, mic mute, Bluetooth connect, and mic switch
Yes

AI-Powered Noise Canceling Microphone

AI noise cancelation uses external and internal mics to capture ambient sound, then machine-learning models detect what is not your voice and subtract it in real time so speech stays clear.
Controls Designed for Agent Assist

The AC-304TR’s in-line volume and mute controls also include Bluetooth call connect and microphone switching capability. Connect to an HS-1500BT II and even switch microphone inputs with the press of a button for a seamless customer service experience
Versatility and Comfort

With an adjustable headband and easy-to-clean leatherette earpads, the AC-304TR features an adjustable boom microphone, allowing you to wear the microphone on either side of your head

Softphone Interoperability

Platform	Agent Headset	Testing Requirements	Headset Requirements	General Requirements
Genesys Cloud (CCaaS platform)	AC-204TR, AC-204ENC II, AC-304TR, AC-304	Hardware Vendor Integration and Managed Test Program	Headset Recommendations	Standard USB Headset with optional custom integration for mute & call controls
Twilio (Programmable communications)	AC-204TR, AC-204ENC II, AC-304TR, AC-304	Headset Vendor Self Test	Headset Information	Standard USB Headset
NICE CXone (CCaaS platform)	AC‑204TR, AC‑204ENC II, AC‑304TR, AC‑304	Headset Vendor Self Test	Headset Information	Standard USB Headset
Amazon Connect (Cloud contact center)	AC‑204TR, AC‑204ENC II, AC‑304TR, AC‑304	Headset Vendor Self Test	Headset Requirements	Standard USB Headset
8x8 (Unified communications)	AC‑204TR, AC‑204ENC II, AC‑304TR, AC‑304	Headset Vendor Self Test	Headset Information	Standard USB Headset
Five9 (Cloud contact center)	AC‑204TR, AC‑204ENC II, AC‑304TR, AC‑304	Headset Vendor Self Test with Formal Verification	Headset Recommendations	Standard USB Headset with optional custom integration for call controls
Talkdesk (Cloud contact center)	AC-204TR, AC-204ENC II, AC-304TR, AC-304	Headset Vendor Self Test	Headset Information	Standard USB Headset
Avaya (Enterprise communications)	AC‑204TR, AC‑204ENC II, AC‑304TR, AC‑304	Not Maintained	Headset Information	Program Not Maintained Standard USB Headset with legacy program for optional custom integration for call controls
RingCentral (Unified communications)	AC-204TR, AC-204ENC II, AC-304TR, AC-304	Headset Vendor Self Test	Headset Reccomendations	Standard USB Headset with optional custom integration for call controls
Sanas (Voice personalization)	AC‑204TR, AC‑204ENC II, AC‑304TR, AC‑304	Managed Test Program	Headset Information	Standard USB Headset