EARTEC UL4S Ultralite-HD 4-Person Wireless Intercom Headset Communication System
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In the box
In the box
Free standard shipping
Free standard shipping
*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy
Free Local Pickup
Free Local Pickup
Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more
When your job calls for split-second coordination, look to UltraLITE-HD self-contained headsets for hands-free, full-duplex wireless voice contact. These revolutionary headsets eclipse all other full-duplex systems for performance and convenience, as the transceiver is built right inside the ear cup.
Expandable
At the heart of the UltraLITE HD system is a specialty MAIN headset that relays the digital signals generated by up to four REMOTE units, allowing up to 5 people to talk simultaneously and hands-free.
AutoMute Technology
The flexible gooseneck microphone boom assembly swivels 270 degrees to be worn on either left or right, and an internal switch will automatically mute the headset mic gain when set to the UP position.
Ready to Use
UltraLITE HD is ready to use right out of the box. To operate, simply turn the headsets ON and talk! Featuring 5 volume settings with audible tones to denote the headset volume level.
No Wires or Base Stations Required
With the transceiver built right inside the ear cup, this self-contained, all-in-one design eliminates wires and belt-worn radios. No complicated base stations or beltpacks required!
Water Resistant
Eartec UltraLITE HD headsets are silicone sealed for use outdoors in inclement conditions.
Deluxe Padding
Featuring an adjustable padded headband, UltraLITE HD headsets fit firmly, yet comfortably, for an 8-hour work shift.
Hands-Free Communication
Designed to streamline communications in many industries, including food service, catering, kitchen/restaurant staff, boating staff/crew, sports coaches/assistants, and more!
Field Replaceable
The Lithium Polymer batteries (included) charge externally and are field replaceable. This allows you to purchase spare batteries to keep on hand during your important events!
EARTEC UL4S Ultralite-HD 4-Person Full Duplex Wireless Intercom Headset Communication System
| Frequency | 1920 – 1930MHz (USA) |
| Preferred Frequency (MHz) | TX/RX: 1921.536 ~1928.448MHz |
| Maximum Transmit Power | 100mW |
| Usage Type / Duplexing | TDMA / Time Division Duplex (TDD) |
| Channel Tuning Step | 1.728MHz |
| Channel Bandwidth | 1.728 GHz |
| Modulation Type | GFSK |
| Transmission Speed | 1.152 Mbps (Baud Rate) |
| Range | 300 yards (line of sight, terrain dependent) |
| Headset Power Supply | Rechargeable Lithium 3.7 V/ 800 mAh 3.0 Wh |
| Charger Power Supply | AC / adapter: INPUT 110-40Vac |
| Charge Time | 3 Hours |
| Operation Time | 5-6 Hours |
| Normal Condition of Use | 0 °C to 40 °C |
| Storage Temperature | -10 °C to 50 °C |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.






