A multi-screen interactive presentation system for LED and LCD video walls, meeting rooms and control rooms. One 4K HDMI input feeds two 4K HDMI outputs, while up to nine wireless sources share the screen over Wi-Fi 6 or Gigabit Ethernet. Built-in whiteboard, annotation and 10-point touchback keep hybrid sessions interactive.
Product Summary
Wired HDMI switching and cross-platform wireless casting in one aluminium alloy unit
PTB3609 combines wired HDMI routing with wireless casting from Windows, macOS, Android, iOS and Chrome devices. Presenters connect through AirPlay, Miracast, DLNA or tranScreen, then arrange content in 1, 2, 4 or 9 window layouts. Access is controlled by local or server-based PIN codes, host privilege can be transferred between presenters, and a configurable main presenter keeps large sessions organised. The unit runs Android 11.0 and decodes H.265, H.264 and VP9 up to 4096 x 2304 at 60fps.
Product Gallery
PTB3609 front viewSide interface panelRear interface panel
Key Features
Nine Wireless Sharing Channels
Casting supports 1 x True 4K stream, 4 x 1080P streams or 9 x 720P streams, so several teams can put content side by side without swapping cables.
Dual 4K HDMI Outputs
1 x 4K HDMI input and 2 x 4K HDMI outputs carrying the same content let one source feed two displays in a room or relay point.
Wi-Fi 6 and Gigabit Ethernet
Dual-band 2.4GHz / 5GHz Wi-Fi 6 plus a 1000Mbps wired port gives integrators a choice of wireless or fixed-network deployment.
10-Point Touchback
Windows and macOS users can control the source laptop from the room display, supporting annotation and interactive whiteboard work.
Low Latency Over Distance
Average transmission latency below 150ms at 10m / 1080P, with a wireless transmission distance over 30m at 1080P line of sight.
Built-In Collaboration Tools
Electronic whiteboard, on-screen annotation, wireless notes for fewer than 128 users and wireless speech keep discussion inside one screen.
Technical Specifications
Model
PTB3609
Application
LED video walls, LCD video walls, meeting rooms, control rooms and multi-source collaboration
HDMI Input
1 x 4K HDMI input
HDMI Output
2 x 4K HDMI outputs with the same content
Wireless Casting
1 x True 4K stream, 4 x 1080P streams or 9 x 720P streams
Screen Layout
1 / 2 / 4 / 9 split-screen layouts
Wireless Network
Wi-Fi 6 dual-band 2.4GHz / 5GHz
Wired Network
1000Mbps Gigabit Ethernet
Software Casting
Windows, Android, iOS, macOS and Chrome
Hardware Casting
Windows and macOS
Wireless Casting Protocols
AirPlay, Miracast, DLNA and tranScreen
Touchback
10-point touchback for Windows and macOS
Average Transmission Latency
Less than 150ms at 10m / 1080P
Wireless Transmission Distance
More than 30m at 1080P, line of sight
Interactive Features
Electronic whiteboard and on-screen annotation
Collaboration Features
Wireless notes and wireless speech
Wireless Notes
Supports fewer than 128 users
Access Control
Local or server-based PIN code casting
Presenter Control
Transferable host privilege and configurable main presenter
Bluetooth
Bluetooth 5.0
System
Android 11.0
Multimedia Decoding
H.265, H.264 and VP9 up to 4096 x 2304 @ 60fps
USB Support
USB storage, keyboard and mouse devices
Audio Output
HDMI audio output and 3.5mm TRS audio output
Operating Temperature
0 degrees C to +50 degrees C
Operating Humidity
0% to 85% RH, non-condensing
Housing Material
Aluminium alloy
Models and Options
PTB3609 is delivered as a single wireless video processor model. Configuration is made in software rather than by hardware variant: integrators choose between 1 / 2 / 4 / 9 split-screen layouts, set the casting quota (1 x True 4K, 4 x 1080P or 9 x 720P streams), and select local or server-based PIN code casting. Host privilege can be handed from one presenter to another, and a main presenter can be fixed for larger sessions. The Android 11.0 platform accepts USB storage, keyboard and mouse, and decodes H.265, H.264 and VP9 up to 4096 x 2304 at 60fps for local media playback.
Materials and Structure
The enclosure is made of aluminium alloy, with a side interface panel and a rear interface panel shown in the gallery above. Connectivity covers a 4K HDMI input, two 4K HDMI outputs, USB ports for storage and input devices, 1000Mbps Ethernet, HDMI audio output, a 3.5mm TRS audio output and Bluetooth 5.0. Both HDMI outputs carry the same content, which suits mirrored displays inside one room or a relay to a second screen position. The fanless-friendly metal housing is rated for 0 degrees C to +50 degrees C and 0% to 85% RH non-condensing operation.
Applications
LED and LCD video walls, control rooms and multi-source collaboration desks
Corporate meeting rooms, coworking spaces and hybrid BYOM meetings
Training institutions, corporate training centers and university classrooms
Showrooms, experience centers and product demonstration spaces
Medical training, government and public sector meeting rooms
Pro AV integration projects, AV distribution and interactive flat panel integration
Customization
tranScreen designs, develops and manufactures its wireless interaction products in house, which allows customized hardware and software for partners with specific requirements. Typical integration paths include adding wireless presentation, casting and BYOM capability to an existing interactive flat panel or professional display, working with the display's Android mainboard and touch panel, and OEM or SDK integration. Because compatibility depends on the Android version and chipset of the host display, projects start with a compatibility check before configuration is confirmed.
Case Study
Thailand distributor deployment, 10 units
Used for wireless presentation with one-to-multiple sharing, transmitting video, audio, touchback control, camera and microphone signals at the same time in meeting rooms, classrooms and exhibition halls. Reported result: synchronous audio and video casting in one connection, multi-screen split display, less cable plugging and reduced pre-meeting preparation time.
Singapore distributor deployment, 4 units
Installed in a smart classroom where students cast assignments from phones or tablets to the large screen for real-time teacher annotation, and four group proposals were displayed simultaneously. Reported result: classroom interaction rate increased by 60%, supported by touchback and split-screen display with flexible casting permission control.
Japan distributor deployment, 5 units
Deployed for wireless presentation, video demonstration and screen sharing in customer demonstration rooms and sales centers. Reported result: cable-free meetings and presentations, with low latency and smooth playback for demonstration use.
FAQ
How many presenters can share the screen at the same time?
Wireless casting supports 1 x True 4K stream, 4 x 1080P streams or 9 x 720P streams, arranged in 1 / 2 / 4 / 9 split-screen layouts. Wireless notes support fewer than 128 users.
Does the PTB3609 support touchback from the display?
Yes. 10-point touchback is supported for Windows and macOS sources, so presenters can annotate and operate the laptop from the room display.
Which devices and casting protocols are supported?
Software casting covers Windows, Android, iOS, macOS and Chrome. Hardware casting covers Windows and macOS. Supported protocols are AirPlay, Miracast, DLNA and tranScreen.
Can both HDMI outputs show different content?
No. The two 4K HDMI outputs carry the same content. They are intended for mirrored displays in one room or for relaying the same image to a second screen position.
What latency and wireless range should we plan for?
Average transmission latency is less than 150ms at 10m / 1080P. Wireless transmission distance is more than 30m at 1080P with line of sight, so site surveys should account for walls and obstructions.
How is casting access controlled in a public room?
Access control uses local or server-based PIN code casting. Host privilege can be transferred between presenters and a main presenter can be configured in advance.
Which compliance documents apply to this model?
The RoHS certificate WEB260701013RCC lists PTB3609 among its covered models. CE (RED 2014/53/EU), IMDA and NBTC SDoC registrations are held for related wireless video processor models, so the applicable document set for a specific order should be confirmed with the sales team.
Can the unit be integrated into an existing interactive flat panel?
Yes, projects commonly add wireless presentation and BYOM capability to an existing IFPD or professional display. Compatibility depends on the display's Android version and chipset and is verified before configuration.
Inquiry Information
Shenzhen tranScreen Technology Co., Ltd. — founded 2014, 4,000 square metre facility, 50 employees, 120,000 units annual output, 30 R&D engineers.
Address: Room B322, 3/F, Block B, No. 168, Bao Yuan Road, Bao An District, Shenzhen, Guangdong Province, China, 518102
Website: www.transcreen.com
Image Filenames and Alt Text Suggestions
multi-screen-interactive-presentation-ptb3609-front-view.png — Alt: Multi-screen interactive presentation PTB3609 front view of the aluminium alloy unit
multi-screen-interactive-presentation-ptb3609-side-interface.png — Alt: Side interface panel of the PTB3609 wireless presentation unit
multi-screen-interactive-presentation-ptb3609-rear-interface.png — Alt: Rear interface panel of the PTB3609 showing HDMI, USB and network connectivity
SEO Title: PTB3609 Multi-screen Interactive Presentation with 10-Point Touchback
Meta Description: PTB3609 multi-screen interactive presentation supports 9 wireless casters, 4K HDMI in and dual 4K out, Wi-Fi 6, 10-point touchback and AirPlay, Miracast, DLNA.
