---
product_id: 34253243
title: "EARTEC UL2S Ultralite-HD 2-Person Full Duplex Wireless Intercom Headset Communication System, Single Ear Headsets, Up to 1000ft Range, U.S. Company"
brand: "eartec"
price: "฿41674"
currency: THB
in_stock: true
reviews_count: 11
category: "Eartec"
url: https://www.desertcart.co.th/products/34253243-eartec-ul2s-ultralite-hd-2-person-full-duplex-wireless-intercom
store_origin: TH
region: Thailand
---

# 1000ft wireless range 6 hours talk time Noise-cancelling mic EARTEC UL2S Ultralite-HD 2-Person Full Duplex Wireless Intercom Headset Communication System, Single Ear Headsets, Up to 1000ft Range, U.S. Company

**Brand:** eartec
**Price:** ฿41674
**Availability:** ✅ In Stock

## Summary

> 🎧 Stay connected, stay ahead — communication that works as hard as you do!

## Quick Answers

- **What is this?** EARTEC UL2S Ultralite-HD 2-Person Full Duplex Wireless Intercom Headset Communication System, Single Ear Headsets, Up to 1000ft Range, U.S. Company by eartec
- **How much does it cost?** ฿41674 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/34253243-eartec-ul2s-ultralite-hd-2-person-full-duplex-wireless-intercom)

## Best For

- eartec enthusiasts

## Why This Product

- Trusted eartec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Battery Life:** Up to 6 hours of continuous talk time keeps your team powered through long shifts and intense projects.
- • **Ultra-Long 1000ft Range:** Stay connected across large spaces—perfect for boats, construction sites, and event productions.
- • **Ready for Any Environment:** Water-resistant, lightweight design with a soft carrying case—built for professionals on the move.
- • **Seamless Full Duplex Communication:** Talk and listen simultaneously without interruptions, freeing your hands for critical tasks.
- • **Crystal Clear Audio with Noise Cancellation:** Cut through engine noise and crowds with a mic that mutes automatically when not in use.

## Overview

The EARTEC UL2S Ultralite-HD is a professional-grade, wireless full duplex intercom system designed for two users, featuring a 1000ft range, 6-hour rechargeable battery life, and noise-cancelling microphones. Ideal for demanding environments like marine operations, video production, and construction, it offers hands-free, crystal-clear communication with expandable multi-user capability and a durable, water-resistant design.

## Description

Buy EARTEC UL2S Ultralite-HD 2-Person Full Duplex Wireless Intercom Headset Communication System, Single Ear Headsets, Up to 1000ft Range, U.S. Company: Computer Headsets - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: As others have said, this should be named marriage saver, essential for marine enjoyment - This product seems overpriced at first glance. But then, how much is your marriage worth? The Eartec just function without drama, allowing you to communicate with your first mate at a whisper, even when there is serious engine noise in the background and they are at the other end of the boat and out of sight. Yelling and cursing are no longer a part of the boat trailer unloading, dock departure, boat docking and loading onto the boat trailer routines. Hand signals that never seem to make sense are no longer needed. The units do not require any fiddling with to sync up and user instructions on use can be boiled down to "put the headset on and speak into the microphone". The units are full duplex so you both can be speaking and listening to the other simultaneously, unlike walkie talkies, and both hands are free to tend to the rudder and lines. The construction quality is excellent. We use lanyards around our necks to keep them from accidentally falling into the drink when we bend over the railing or bump our head on something. Battery life is good, with one caveat. The "slave" units do not have an on-off switch, unlike the master, and the battery will run down if left in. We make a practice of removing the batteries from both the master and slave headsets after we are finished using them. We have an extra set of charged batteries along, but we have never needed to use them since the batteries seem to last for hours when used properly. This is one of the best purchases we have made for our boating activities. Because there is no need to raise voices to be heard, everything is calmer and the whole experience much more pleasant, even during the inevitable moments of excitement and stress.
Review: Great headsets. Double check that they are turned off - Based on the various reviews I concluded with confidence that these were either excellent or horrible. The deciding factor for me was that these appeared to be the best available. After using them for 10 months I can report that they work extremely well for our purpose. We are a couple with a 75 foot motor yacht and manage it ourselves. Docking, anchoring and reassuring my wife on watch while I’m below can all be done at no more than whisper level volume. The sound quality is excellent with zero static interference. For some inexplicable reason they have two systems for turning the headsets on and off. The master has a simple sliding on / off switch that leaves one without doubt as to its status. The slave however has a button that needs to be held for “4-5 seconds” and has a light which may or may not appear when headset is on or off (I can only imagine (hope?) this serves some purpose when using multiple slaves in tandem). If for example you press the slave on / off button for 3 seconds it may remain on and the only way to check is to press the button again. To test you need to depress the volume button which lights up if the headset is on. I would put this quirk of design down to the many reviews complaining of poor battery life. If inadvertently left on the headset will drain. Note that inserting the battery into the slave turns it on. We have found that we can get 4 – 5 uses of a half hour each before needing to charge the (included) rechargeable batteries. Note that there is an audible warning when the batteries are low and you will only have a few minutes of operation before they go dead. We have taken to charging them every other use to be on the safe side. They come with a nice padded, soft sided stowage case befitting a product of this expense and quality. I would not hesitate to recommend

## Features

- INCLUDES: 1 ULSM Single-Ear Main Headset, 1 ULSR Single-Ear Remote Headset, 2 Rechargeable Lithium Batteries, Dual Bay Multi-port Charger and a Softside Carrying Case.
- HANDS-FREE FULL DUPLEX: Wireless headsets operate on 1.9 GHz frequency to avoid interference with other devices; allows for simultaneous communication for 2 users. System expandable for up to 5 users.
- EXCEPTIONAL PERFORMANCE: Up to 1,000 ft LOS wireless range; up to 6 hours of talk time on a single charge; pivoting microphone allows for the headsets to be worn on either left or right side.
- GREAT CLARITY: Noise-cancelling microphone that automatically mutes when pivoted upwards; high-quality voice communication even in high-noise environments.
- PERFECT FOR: video production, stage production, boat operators, drone operators, construction sites, RVs, UTVs and more!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LOKU8KQ |
| Age Range (Description) | Adult |
| Audio Driver Type | Dynamic Driver |
| Batteries | 2 Lithium Ion batteries required. |
| Battery Life | 6 Hours |
| Best Sellers Rank | #85 in Telephone Headsets |
| Cable Feature | Without Cable |
| Carrying Case Color | Black |
| Carrying Case Material | fabric |
| Charging Time | 6 Hours |
| Compatible Devices | Tablets |
| Connectivity Technology | Wireless |
| Control Method | Remote |
| Control Type | Button Control |
| Controller Type | Button |
| Customer Reviews | 4.4 4.4 out of 5 stars (531) |
| Date First Available | August 18, 2016 |
| Earpiece Shape | Rounded tip |
| Frequency Response | 1900 MHz |
| Generation | 2 |
| Hardware Interface | Bluetooth |
| Headphones Jack | No Jack |
| Included Components | Headsets, Batteries, Charging Station, Protective Case |
| Input Device Interface | Proprietary Wireless |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item model number | UL2S |
| Manufacturer | Eartec |
| Material | Plastic |
| Model Name | UL2S UltraLITE-HD |
| Noise Control Features | active_noise_cancellation |
| Number of Items | 1 |
| Product Dimensions | 16 x 9 x 11 inches |
| Recommended Uses For Product | Video production, Stage production, Boat operation, Drone operation, Construction sites |
| Series Number | 2 |
| Special Feature | Full Duplex, Noise Cancellation, Rechargeable, Wireless |
| Specific Uses For Product | Video production, Stage production, Boat operation, Drone operation, Construction sites |
| Supports Bluetooth Technology | Yes |
| UPC | 642892764501 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Wireless Communication Technology | RF |

## Product Details

- **Brand:** EARTEC
- **Color:** Gray
- **Ear Placement:** Over Ear
- **Form Factor:** On Ear
- **Noise Control:** Active Noise Cancellation

## Images

![EARTEC UL2S Ultralite-HD 2-Person Full Duplex Wireless Intercom Headset Communication System, Single Ear Headsets, Up to 1000ft Range, U.S. Company - Image 1](https://m.media-amazon.com/images/I/612mDXl6POL.jpg)

## Questions & Answers

**Q: Can you mute the conversation**
A: Yes...lift the speaker boom straight up to mute automatically

**Q: operating a dozer, skid steer and heavy equipment.  We may work 4-5 hours at a time with frequent communication.  Will batteries last for this?**
A: The batteries won't last that long.  I contacted the manufacturer and they said I have to physically remove the batteries even if they're off or they still draw enough current to drain the batteries completely dead in 4-6 hours.

**Q: Can you have one master with own remote headset operate individually from another master and remote, without interfering or hearing the other system?**
A: Yes, I use mine while about 10-20 other pairs are being used at the same time and me nor anyone else there has any interference.

**Q: I purchased  the 2 unit system. can i purchase an additional slave for the set i have. if so what or how do i order one additional slave.**
A: Yes, but you need to contact company directly to ensure you get the correct headset to work with the master.

## Customer Reviews

### ⭐⭐⭐⭐⭐ As others have said, this should be named marriage saver, essential for marine enjoyment
*by B***H on June 16, 2020*

This product seems overpriced at first glance. But then, how much is your marriage worth? The Eartec just function without drama, allowing you to communicate with your first mate at a whisper, even when there is serious engine noise in the background and they are at the other end of the boat and out of sight. Yelling and cursing are no longer a part of the boat trailer unloading, dock departure, boat docking and loading onto the boat trailer routines. Hand signals that never seem to make sense are no longer needed. The units do not require any fiddling with to sync up and user instructions on use can be boiled down to "put the headset on and speak into the microphone". The units are full duplex so you both can be speaking and listening to the other simultaneously, unlike walkie talkies, and both hands are free to tend to the rudder and lines. The construction quality is excellent. We use lanyards around our necks to keep them from accidentally falling into the drink when we bend over the railing or bump our head on something. Battery life is good, with one caveat. The "slave" units do not have an on-off switch, unlike the master, and the battery will run down if left in. We make a practice of removing the batteries from both the master and slave headsets after we are finished using them. We have an extra set of charged batteries along, but we have never needed to use them since the batteries seem to last for hours when used properly. This is one of the best purchases we have made for our boating activities. Because there is no need to raise voices to be heard, everything is calmer and the whole experience much more pleasant, even during the inevitable moments of excitement and stress.

### ⭐⭐⭐⭐⭐ Great headsets. Double check that they are turned off
*by D***R on May 3, 2019*

Based on the various reviews I concluded with confidence that these were either excellent or horrible. The deciding factor for me was that these appeared to be the best available. After using them for 10 months I can report that they work extremely well for our purpose. We are a couple with a 75 foot motor yacht and manage it ourselves. Docking, anchoring and reassuring my wife on watch while I’m below can all be done at no more than whisper level volume. The sound quality is excellent with zero static interference. For some inexplicable reason they have two systems for turning the headsets on and off. The master has a simple sliding on / off switch that leaves one without doubt as to its status. The slave however has a button that needs to be held for “4-5 seconds” and has a light which may or may not appear when headset is on or off (I can only imagine (hope?) this serves some purpose when using multiple slaves in tandem). If for example you press the slave on / off button for 3 seconds it may remain on and the only way to check is to press the button again. To test you need to depress the volume button which lights up if the headset is on. I would put this quirk of design down to the many reviews complaining of poor battery life. If inadvertently left on the headset will drain. Note that inserting the battery into the slave turns it on. We have found that we can get 4 – 5 uses of a half hour each before needing to charge the (included) rechargeable batteries. Note that there is an audible warning when the batteries are low and you will only have a few minutes of operation before they go dead. We have taken to charging them every other use to be on the safe side. They come with a nice padded, soft sided stowage case befitting a product of this expense and quality. I would not hesitate to recommend

### ⭐⭐⭐⭐⭐ Marriage savers
*by P***Y on January 7, 2026*

These worked as designed. Two issues Proprietary battery Need to have a keeper. Thy will slide off your head

## Frequently Bought Together

- EARTEC UL2S Ultralite-HD 2-Person Full Duplex Wireless Intercom Headset Communication System, Single Ear Headsets, Up to 1000ft Range, U.S. Company
- Eartec 3.7V Rechargeable Lithium Ion Battery for Ultralite headsets and HUB Stations (LX600LI)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-20*