80M Wireless HDMI-Compatible Casting Dongle Peer-to-Peer Needed Stable Signal Screen Cast Kit for Large Conference Classroom

Wireless HDMI-Compatible Peer-to-Peer Screen Casting Transmitter & Receiver KitProduct OverviewThis peer-to-peer wireless HDMI-Compatible casting kit delivers driver-free plug-and-play screen mirroring without WiFi routers. Featuring 2.4G+5G dual-band transmission, up to 80m long-distance stable signal, 1080P full HD synchronous audio & video output, it perfectly matches office meetings, classroom teaching, live broadcast, security monitoring, media production and home entertainment. No messy wired constraints, cast content from laptops, cameras, game consoles to TV, monitor, projector in one second.Core Selling Points1. 1080P FHD Synchronous Audio & Video PlaybackUpgraded high-performance chip supports 1080P@60Hz high-definition casting. Eliminate screen flicker, color distortion and jagged edges, restore true-to-life color. Audio and video transmit simultaneously without delay, smooth for movie watching, PPT presentation and video editing preview.2. 80M Ultra-Long Distance Stable Dual-Band TransmissionAdopts 2.4GHz + 5GHz dual-band wireless signal, barrier-free transmission distance up to 80 meters. Stable signal even in large lecture halls, big conference rooms and multi-area monitoring rooms, no lag or disconnection during long-time casting.3. Dual Display Modes: Mirror / Extended Screen CollaborationMirror Mode: Copy laptop screen to large display, magnify PPT, images and videos for clearer group sharingExtended Mode: Split two independent screens, separate work and entertainment windows, double office efficiency for meetings and design work4. One-Click Privacy Protection Physical ButtonBuilt-in red physical button on transmitter. One tap to instantly disconnect/reconnect casting signal during meetings or classes. Quickly hide private screen content to avoid information leakage, simple and reliable privacy guard.5. High-Performance Chip, Lag-Free Smooth PicturePowerful built-in processing chip optimizes signal transmission algorithm. Effectively solve screen stutter, freeze and flicker problems, maintain ultra-smooth real-time casting for all-day long working.6. Cross-System & Multi-Device Wide CompatibilityFully compatible with Windows, Mac OS, Android, HarmonyOS, iOS mainstream systems.Signal Source: Laptops, desktops, cameras, PS5 game consolesDisplay Output: HDMI-Compatible TV, monitor, projector, conference all-in-one machineNo extra driver installation required, plug and play instantly.7. Super Simple 2-Step Connection, No Complicated SetupPeer-to-peer automatic pairing without WiFi router, only two easy steps to finish casting:Plug Receiver (RX) into HDMI-Compatible port of display device, power via Type-C cable, switch corresponding signal sourceInsert Transmitter (TX) into HDMI-Compatible port of signal source device, connect Type-C power supply, auto-pair and start screen mirroring8. All-Scenario Universal ApplicationSuitable for multiple professional & daily scenes to meet diverse needs:✅ Office Audiovisual Conference: Cast PPT, data reports and design drafts for team sharing✅ Multimedia Classroom Teaching: Project courseware and teaching videos for large class✅ Radio & Television Live Broadcast: Real-time preview camera footage on monitor✅ Security Monitoring: Synchronize multi-screen monitoring signals remotely✅ Home Entertainment: Cast movies, games from laptop to big TV screenDetailed Product ParametersModel: CHD21Transmitter Interface: HDMI-Compatible + Type-CReceiver Interface: HDMI-Compatible + Type-CWorking Power Supply: 5V/2ASupported Resolution: 1080P@60HzShell Material: ABS Metal Texture CaseColor Matching: Grey Main Body + Red ButtonProduct Size: 732611mmTransmission Band: 2.4GHz + 5GHz Dual BandMax Transmission Distance: 80m Barrier-FreeWorking Modes: Screen Mirroring / Extended DisplayExtra Function: One-Click Disconnect Privacy ButtonPackage Contents1 × Wireless Transmitter (TX)1 × Wireless Receiver (RX)2 × Type-C Power Cables1 × User ManualWarm NotesThis kit is only applicable to devices with HDMI-Compatible interfaces;For 80m long-distance transmission, avoid thick metal barriers between TX and RX to guarantee stable signal;If your device’s HDMI port cannot supply enough power, please connect the attached Type-C power cable for stable operation;Manual measurement of size and weight exists slight error, please take the real product as standard.