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Eartec UL523 5-Person Full-Duplex Wireless Intercom with 2 UltraLITE Single-Ear & 3 UltraLITE Dual-Ear Headsets

BH #EAUL523 • MFR #UL523
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Eartec UL523 5-Person Full-Duplex Wireless Intercom with 2 UltraLITE Single-Ear & 3 UltraLITE Dual-Ear Headsets
Key Features
  • Intercom System for 5 People
  • No Wires or Belt-Worn Items
  • 1 Single-Ear Master Headset
  • 1 Single-Ear Remote Headset
The Eartec UL523 is a full-duplex wireless intercom suitable for facilitating communication among five people. It comes with one single-ear master headset for the team leader and one single-ear, and three dual-ear remote headsets for everyone else. All technology necessary for operating the intercom system, including batteries, has been built into the headset's ear cups. This eliminates the need for wires or belt-worn items. Five rechargeable batteries, an eight-bay multi-port charger, and a soft-side case are provided.
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The Eartec UL523 is a full-duplex wireless intercom suitable for facilitating communication among five people. It comes with one single-ear master headset for the team leader and one single-ear, and three dual-ear remote headsets for everyone else. All technology necessary for operating the intercom system, including batteries, has been built into the headset's ear cups. This eliminates the need for wires or belt-worn items. Five rechargeable batteries, an eight-bay multi-port charger, and a soft-side case are provided.

Eartec UltraLITE Single-Ear Master Headset with Rechargeable Lithium Battery (USA Version)

The USA version UltraLITE Single-Ear Master Headset with Rechargeable Lithium Battery from Eartec is a self-contained, replacement full-duplex wireless intercom headset. It can be used to provide simultaneous talk and two-way voice communication for users that need to work with their hands, yet also require one ear free to listen to what is going on around them.

The system eliminates belt-worn radios because all electronics are built into the ear cups. The fully adjustable noise cancelling microphone ensures effective voice communication.

Eartec UltraLITE Single-Ear Remote Headset with Rechargeable Lithium Battery (USA Version)

The USA version UltraLITE Single-Ear Remote Headset with Rechargeable Lithium Battery from Eartec is a self-contained, replacement full-duplex wireless intercom headset. It can be used to provide simultaneous talk and two-way voice communication for users that need to work with their hands, yet also require one ear free to listen to what is going on around them.

The system eliminates belt-worn radios because all electronics are built into the ear cups. The fully adjustable noise cancelling microphone ensures effective voice communication.

Eartec UltraLITE Dual-Ear Remote Headset with Rechargeable Lithium Battery (USA Version)

The USA version UltraLITE Dual-Ear Remote Headset with Rechargeable Lithium Battery from Eartec is a self-contained, replacement full-duplex wireless intercom headset. It can be used to provide simultaneous talk and two-way voice communication for users that need to work with their hands, yet also require effective voice communication even in high-noise environments.

The system eliminates belt-worn radios because all electronics are built into the ear cups. The fully adjustable noise cancelling microphone ensures effective voice communication.

Eartec 8-Port Multi-Charger

The Eartec 8-Port Multi-Charger features eight bays to recharge the batteries for UltraLITE, UltraPAK, and HUB. When the batteries reach full charge, the corresponding LED turns from red to green indicating that the battery is charged up and ready to go. The use of external batteries allows users to keep their systems up and running with minimal down time. The charge time is approximately three hours. The charging base ships with an AC adapter.

Eartec UltraLITE Specs

General
Compatibility
Eartec UltraLITE Lithium Polymer Rechargeable Battery
Power
Power Source
AC Input (Included)
Physical
Cable Length
Not Specified by Manufacturer
Dimensions
Not Specified by Manufacturer
Weight
Not Specified by Manufacturer
Packaging Info
Package Weight
0.665 lb
Box Dimensions (LxWxH)
10.85 x 5.75 x 2.1"

Eartec UltraLITE Reviews

Works great!

By Molly
Rated 5 out of 5
Date: 2026-05-26

Comfortable & easy to pair

Budget Friendly Live Production Must Have!

By Erik
Rated 5 out of 5
Date: 2024-07-09

I read multiple reviews of the Eartec UltraLITE Headsets prior to purchasing. My first impression after unboxing was that these feel more like a toy than a production environment tool. The $22 battery replacement cost also is a bit of a red flag. It's a proprietary battery so third party batteries aren't an option. In the past I've had to rely on hand signals or my production team members actually paying attention to move from live interviews to prerecorded scenes during livestreams. Not anymore. These simply work, despite their amateur appearance. Since they operate on the 1.9 GHz spectrum, I've never experienced dropouts or interference when in use. You can't toss them around like regular headphones. They not as well built as headphones. Keep them in the protective case when not in use and remove the batteries as recommended when not in use. I'm sure other companies make a better built headset, but at a much higher cost. If you treat them with care and follow the recommendations, these should provide you with several years of worry-free operation.

See any errors on this page?

Do this EU version can operates without HUB or ...

Do this EU version can operates without HUB or must use HUB ?
Asked by: Sutoro
The HUB must be used when there are more than 4 headsets employed and for the extended range.
Answered by: Mark S
Date published: 2019-05-06

Are communications contained in the earpieces (no ...

Are communications contained in the earpieces (no bleed in a quiet church environment)?
Asked by: Ole
The sound would be contained in the earpiece. The Eartec UltraLITE systems are made specifically for situations where the communication must be silent in the room, such as film and video shoots, or theater productions.
Answered by: Steven M
Date published: 2019-05-22

Hello team, I want to use this product in South ...

Hello team, I want to use this product in South Korea. Which version would be appropriate? Thanks in advance!
Asked by: Min
The EU version, which is the Eartec UltraLITE 2-Person Full-Duplex Wireless Intercom with 2 Single-Ear Headsets - 1.9 GHz, EU (B&H # EAUL2SEU), is the appropriate version of the system to use in South Korea.
Answered by: Lisa S
Date published: 2023-03-12

question

If I work in a place where there are other equal teams, is there a problem? Each batch has different ip address number ?
Asked by: Mike
These products do not have IP addresses. They work via RF signals. You may work with 3 separate systems simultaneously.
Answered by: Mark S.
Date published: 2023-06-02

Would I need to buy anything else to make these ...

Would I need to buy anything else to make these work or is just buying these good?
Asked by: Mary
As is, you have communication between four (4) users. Easy to use. Work great.
Answered by: Djuan
Date published: 2019-08-16

question

How can I tighten my microphone? It all of a sudden got very loose and it just falls down when I try to mute it
Asked by: Madison b.
You should contact Eartec to determine if this is something you can fix yourself or if you will need to return the headset for repair. You can reach Eartec by phone at 800-399-5994 or 401-782-4966.
Answered by: Andrea O.
Date published: 2018-08-26

Can the frequency be switched, when used in a ...

Can the frequency be switched, when used in a heavy wireless environment? I often work where the wireless freqs need to be coordinated so everyone isn't stepping on each other.
Asked by: Tore
No you can not change the frequency this system. It has a fix frequency 1728 GHz you should not get any interference using this system.
Answered by: leticia
Date published: 2021-03-04

Is it possible to combine 2 sets to get 8 headset ...

Is it possible to combine 2 sets to get 8 headset working together?
Asked by: Alvaro
No, it is not possible to combine two UL4S systems. Eartec's fully wireless UltraLITE headset system allows one master headset to be used with up to four remote headsets. If you require more than five headsets, you will want to use Eartec's HUB mini base station which allows use of up to eight wireless UltraLITE headsets and one wired headset. For a system with eight wireless headsets, the best option is the Eartec HUB8S UltraLITE 8-Person HUB Intercom System - USA (B&H # EAHUB8S) which includes eight wireless single-ear headsets and an additional wired headset (sold separately) can be added for use with the HUB base.
Answered by: Lisa S
Date published: 2020-10-26
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