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The Yealink UH34/UH34 Lite, available in monaural (UH34/UH34 Lite Mono) and binaural (UH34/UH34 Lite Dual), is a professional USB wired headset with crystal clear audio. The UH34/UH34 Lite offers a lightweight form factor that is comfortable to wear, even for an entire workday. It’s suitable for workers who spend a lot of time wearing headsets for voice communications. Provided with Yealink USB Connect software and Yealink Device Management Platform/Cloud Service, you are easy to check the device information and upgrade the firmware of one or multiple UH34/UH34 Lite headsets.Simple and Flexible ConnectivityRuns right out of box, a USB plug-and-play setup makes the connectivity to PC. You can enjoy a reliable call experience with soft clients. Perfect match with Yealink IP phones give you optimized audio quality.Ultra-lightweight, All Day Wearing ComfortBuilt for comfort with soft ear cushions and ultra-lightweight materials, the UH34/UH34 Lite is 10%

Treat your headset to new ear cushions. Contains 10 pieces in total.

HDMI Extender Kit Ideal for Digital Signage in Schools, Restaurants and Lecture HallsThis complete transmitter and transceiver system is recommended for video presentations in conference rooms, schools, trade shows, meeting facilities, houses of worship, retail settings, hotels and other digital signage applications where the source and display are farther apart than conventional A/V cables allow. The B127A-111-BHTH extends 4K signals from an HDMI source device to an HDMI display up to 230 feet away via user-supplied Cat6 cabling. IR remote control lets you operate the source from the display end of the installation.Transmits Crystal-Clear 4K Video with Multi-Channel Audio, HDR and 4:4:4 ColorThe B127A-111-BHTH supports Ultra HD resolutions up to 3840 x 2160 (4K x 2K) at 60 Hz, as specified by HDMI 2.0, with full, rich uncompressed DTS-HD, Dolby TrueHD and 7.1-channel digital audio. High Dynamic Range (HDR) provides a wide range of vibrant colors with richer contrast, brighter whites and deeper blacks that pop on your 4K display. HDCP 2.2 compliance allows you to stream 4K Amazon and Netflix content with no complications. This extender kit also supports 4:4:4 chroma subsampling for top-level PC gaming or using your HDTV as a PC monitor. Built-in equalization allows you to fine-tune the image quality at the remote display.Local HDMI Port on Transmitter Supports 4K @ 60 Hz ResolutionTo monitor the video signal being extended to the transceiver, connect a 4K display to the transmitter’s local HDMI port with a user-supplied HDMI cable. This port does not support multi-resolution capabilities, so the connected monitor must also support 4K/60 Hz to function properly.Built-In PoC Technology Provides Transceiver Power to Avoid Bulky External Power BricksPower over Cable (PoC) technology powers the transceiver over Cat6 cable. LEDs on both the transmitter and transceiver will light up to indicate the system is receiving power and a signal is being transmitted. PoC lets you avoid the hassle of a bulky power brick and gives you the freedom to place the transceiver where needed without worrying about finding a nearby AC outlet.Create a Daisy Chain to Achieve Even More DistanceThis extender kit is capable of forming daisy-chain installations up to 920 feet from the transmitter by connecting additional B127A-110-BH transceivers (sold separately). Up to four total B127A-110-BH transceivers can be chained together, each capable of extending a 4K/60 Hz signal up to 230 feet per unit. The transceiver is also compatible with B127A-010-H signal booster (sold separately), which allows the signal to be boosted up to 400 feet total between the transmitter and transceiver. When used in a daisy-chain installation, this brings the total extension distance up to 1,090 ft. Note: B127A-010-H will only work when used in the first link of the daisy-chain installation.Plug-and-Play Operation for Quick Setup and Immediate UseThe included transmitter and transceiver units work right out of the box with no software required. Mounting hardware is included for installing the transmitter on a wall, pole or 19-inch rack. Connect the transmitter to the source with a user-supplied HDMI cable (such as P568- or P569-Series). Then, connect the transceiver to the display with another user-supplied HDMI cable. Finally, connect the two units with user-supplied Cat6 patch cable (such as N202-Series cable).TAA-Compliant for GSA Schedule PurchasesThe B127A-111-BHTH is compliant with the Federal Trade Agreements Act (TAA), which makes it eligible for GSA (General Services Administration) Schedule and other federal procurement contracts.

The ViewSonic PA504W is a high-brightness lamp projector tailored for both education and business settings. It features a 1.21-1.57 throw ratio, allowing seamless projector upgrades in typical installation conditions. With 4000 ANSI Lumens, it ensures bright, vivid images even in well-lit environments, guaranteeing clarity for every presentation or lesson. Its Texas Instruments' 0.65” DMD Chip elevates the viewing experience with a high native contrast ratio, unveiling fine details for exceptional sharpness on the screen. Effortlessly switch between content sources via the dual HDMI ports. Additionally, you can combine it with the ViewSonic WPD-700 Wireless Screen Casting Kit, powered by the projector's USB-A output, for expanded versatility. Comprehensive LAN control takes this convenience further, providing streamlined device management. Based on DLP technology, it maintains consistent color performance and great readability over time and features a filter-free design for minimal maintenance requirements.Seamless Projector Upgrades ​Designed with a 1.21-1.57 throw ratio, the PA504W ensures a seamless installation in classrooms or any meeting room without changing your existing ceiling mount and projector screen settings. Easily replace old projector models with the PA504W without hassle.​Bright Images for Education & Business EnvironmentsFeaturing 4,000 ANSI Lumens brightness, deliver lessons or presentations with clear and vibrant visuals, even in well-lit environments.Convenient Multimedia Connectivity ​The dual HDMI ports provide extensive connectivity to support all your HDMI-enabled multimedia devices. You no longer need to unplug your current device to switch to a new one, simply use the remote control to select and change the input source​.Enable Wireless Content Sharing Capability​​Enhance your projector with the WPD-700 Wireless Screen Casting Kit for seamless wireless content sharing. The projector's built-in 5V/1.5A USB-A output powers the dongle, enabling simultaneous multimedia streaming and power charging without adapters.​Centralized Control for Efficient Device Management ​The PA504W is compatible with Crestron, AMX, PJ Link, ATEN, and Extron systems, enabling centralized device management for enhanced operational efficiency​.​Unmatched Contrasts, Enhanced VisibilityThis projector utilizes the advanced 0.65"" DMD chip from Texas Instruments, surpassing the capabilities of the 0.47” standard chip. It offers a high native contrast ratio for deeper blacks, resulting in clearer, more legible images with enhanced visual depth.Reliable Long-Term Performance with DLP Projection Technology​With the DLP technology, the PA504W maintains consistent color performance over time, free from any yellowing issues. Featuring a sealed engine design, it is filter-free, preventing dust from affecting internal components and ensuring minimal maintenance effort. Moreover, it offers crisp and seamless image quality, displaying remarkable contrast and eliminating the noticeable screen-door effect.​Ultra-Large Screen with Lower Cost-per-inch​This projector can display an image size of up to 300”, boasting an ultra-large screen that ensures visibility in large-audience classrooms or meeting rooms. Importantly, it presents a cost-effective solution with a lower cost-per-inch than alternative displays.​A Simpler Way to Update Projector Software​Skip trips to the service center by keeping software up to date easily via USB cable connection with your laptop.

Add a second speaker to Logitech Rally to fill large rooms with clear audio. With RightSound™ technologies that virtually eliminate distortion, clipping, and vibration, Rally Speaker makes speech easy to understand while maintaining comfortable volume levels throughout the room. With Rally Speakers at the front of the room, voices and video always come from the same direction — and never from behind you, a problem with tabletop speakerphones. With Rally Mic Pods on the table and Rally Speakers at the display, conversations feel natural and lifelike.