LG 55TR3DK-B

Overview

The LG 55TR3DK-B is a 55-inch UHD 4K touchscreen commercial monitor designed for interactive presentations, teaching, and collaborative work. It features an IPS panel that delivers consistent color and sharp detail visible from every seat in the room. The display supports up to forty simultaneous touch points with infrared sensing, enabling multiple users to write, draw, and interact naturally and responsively. Running Android 11, it allows direct access to popular productivity apps without needing an external computer, while also offering flexible connectivity options for personal devices and optional PC modules.

Key features

• 55-inch UHD 4K IPS display ensures clear visuals and accurate colors across wide viewing angles
• Infrared touch technology supports up to forty simultaneous inputs for multi-user collaboration
• Android 11 operating system provides native access to Google Drive, Docs, Sheets, and other apps
• Built-in Wi-Fi 6 and Bluetooth 5.0 enable fast and reliable wireless connections for screen sharing and peripherals
• Front HDMI and USB-C ports offer simple, single-cable connections for laptops and other devices
• OPS slot allows integration of Windows or Linux compute modules for full desktop software use
• Wireless screen sharing supports up to nine devices simultaneously, facilitating group discussions and hybrid meetings
• Screen lock and USB lock mode protect sensitive information and prevent unauthorized file transfers
• Two front-facing 15-watt speakers deliver clear audio suitable for most classroom or meeting room environments

Key specs

• Display size: 55 inches
• Resolution: UHD 4K (3840 x 2160)
• Panel type: IPS
• Touch technology: Infrared with up to 40 simultaneous touch points
• Operating system: Android 11
• Wireless standards: Wi-Fi 6, Bluetooth 5.0
• Audio output: 2 x 15 watts front-facing speakers
• Connectivity: HDMI, USB-C, OPS slot for PC module

Connectivity and compatibility

This monitor offers versatile connectivity options to fit various setups. The front HDMI and USB-C ports allow quick connection to laptops, tablets, or other devices with a single cable, reducing clutter and setup time. The OPS slot supports optional PC modules running Windows or Linux, enabling full desktop applications when needed. Wireless collaboration is enhanced by built-in Wi-Fi 6 and Bluetooth 5.0, allowing multiple users to share screens and connect peripherals without cables.

• Front HDMI port for high-definition video and audio input
• USB-C port supports video, data, and power delivery in one cable
• OPS slot compatible with Windows and Linux compute modules
• Wi-Fi 6 for fast, stable wireless network connections
• Bluetooth 5.0 for connecting wireless accessories

Ideal uses and environments

The LG 55TR3DK-B fits well in educational settings such as K-12 classrooms and university lecture halls, where clear visuals and interactive participation are essential. It also suits corporate training rooms and huddle spaces that benefit from quick setup and intuitive multi-user interaction. Its ability to handle multiple simultaneous touch inputs and wireless screen sharing makes it a strong choice for collaborative teams and hybrid meetings, supporting a variety of devices and user preferences.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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