K-4x Series

KLICK&SHOW enables you to present content from your notebook or mobile devices on a large screen.
This transforms your meeting rooms into completely wireless spaces for collaboration.

Sharing screens becomes as simple and intuitive as a single mouse click and supporting business and education use.

KLICK&SHOW means a clean and tidy meeting room without adapters or cables on or under the table.

Go wireless,
save time,
be more produtive
and effective.

  • The universal wireless presentation solution
  • Intuitive dongles with 3 different connection options available
  • Runs on all major operating systems
  • Perfect price-performance ratio
  • 4K60 ready

Product options

Product/Bundle K-40 base unit K-42H KIT K-42UC KIT K-42U KIT
Item number 7488000315 7488000311 7488000312 7488000310
Dongles (supplied with) - 2x HDMI 2x USB-C 2x USB-A
PC / MAC operation Software client HDMI dongle and
software client
USB-C dongle and
software client
USB-A dongle and
software client
Mobile devices Android App or AirPlay
Video input via HDMI or USB-C dongles

Further Information



Universal for all platforms

Users of Windows and Mac laptops connect the Klick & Show dongle to the USB-A, USB-C or HDMI port of their device. A short touch of the dongle surface is enough to wirelessly mirror the computer screen to the display or projector.

Plug & Play

Driverless transmitters for HDMI and USB-C ports

The HDMI and USB-C dongles work completely without installation of software. Simply plug in the dongle and in a few seconds, content can be presented wirelessly in brilliant and fluid Full HD resolution.

Touch & Go

touch sensitive
dongle with

One touch of the dongle surface is enough and the dongle goes live. A haptic and optical feedback (vibration and color change) confirms its activation.

Touch Back

Transfer of the
Mouse actions back
to the PC

How to control the presentation when you left your laptop at your desk? The touch back support of KLICK&SHOW makes it possible. The computer can be controlled remotely, and all mouse actions are transmitted back – provided a touch display is available.

Whiteboard &

Capture and comment on ideas

KLICK&SHOW has all the tools on board for a successful, interactive meeting. An integrated whiteboard app makes spontaneous brainstorming sessions possible. With the annotation function, important points in a presentation can be quickly highlighted or commented.

Low Latency

1080p transmission

Wireless, smooth transmission in excellent image quality with Full HD (1080p) resolution and low delay (latency of about 100 ms), about the blink of an eye.

Split screen

Supports quad (4) split screen

The KLICK&SHOW base unit natively supports high-resolution 4K displays (3840 x 2160), which allows the simultaneous sharing of up to four screens in sharp Full HD resolution.

18 participants

Easy moderation thanks to preview function

Moderating is not an easy job. KLICK&SHOW supports this with a preview function. Up to 18 devices can be connected to a base at the same time.


for speaker view

Professional presenters will be pleased by the “Extended Desktop” function, where in PowerPoint, for example, the presentation runs on the main screen, but the notebook screen shows the speaker’s view.


Dongles immediately ready for use

KLICK&SHOW is ready for use immediately after unpacking. In order to pair additional dongles with a base, they only need to be connected briefly to the base via USB.


Employee and guest network

Companies often have separate networks for employees and guests. Therefore, the KLICK&SHOW base K-40 has two network interfaces to meet exactly this situation.


WiFi Encryption

Security in IT is a top priority at KLICK&SHOW. In addition to WiFi encryption with AES WPA2PSK authentication, data transmission can also be additionally encrypted with 256/1024 bit. A 3-stage concept facilitates the configuration.


Firmware updates via OTA

Firmware updates are performed easily and uncomplicated via OTA (Over-the-Air) update on the device or for admins, who prefer a little more control, also manually via WebUI.


Technical details

KLICK&SHOW – technical details
K-40 base unit
Ref. No.
7488000315 7488000311 7488000312 7488000310
Dongles supplied with 2x HDMI 2x USB-C 2x USB-A
Windows 10 Software client, dongle
MacOS Software client, AirPlay, dongle
Mobile devices Android App / AirPlay
Maximum resolution, wireless 1080p
Number of simultaneous wireless connections up to 18 (up to 4 on mainscreen + 14 moderator view)
Splitscreen 1 / 2 / 4
Mouse with low latency yes, USB-A dongle and Windows client
Touch back / USB-HID support Yes, e. g. for touch control of interactive displays, projectors and whiteboards
WiFi frequency supported 2.4 / 5 GHz
WiFi standards support IEEE 802.11b/g/n/ac
WiFi antennas
2×2 MIMO
WiFi bandwidth
up to 1200 Mbit/s
WiFi safety standard
HDMI out / supported resolutions / HDCP 1x HDMI 2.0 / 3840×2160, 1920×1080, 1280×720@60/30 Hz / HDCP 1.4, HDCP 2.0
HDMI in / max. resolution optional via HDMI Dongle (1080p60Hz)
Audio in Dongle, Windows/Mac software client, AirPlay
Audio out 1x 3,5 mm stereo jack
USB 2.0 (type C) 1x (front panel)
USB 2.0 (type A) 1x (front panel)
USB 3.0 (type A) 1x (rear panel)
LAN (RJ45) 1x 1000 MBit/s with PoE, 1x 100 MBit/s
PoE Standard IEEE802.3af
RS232 1x 3pin euroblock (rear panel)
Housing material Aluminum, plastic / similar to space grey, black
Dimensions (W x D x H) 165x95x25 mm (incl. antenna 165x215x25 mm)
Weight 0.2 kg
Power supply wall wart with exchangeable sockets (Euro AV, UK, US, AUS), 12 V / 2 A
Power consumption (max.) max. 10 W


No matter which interface you choose, all KLICK&SHOW dongles have an integrated WiFi function, which automatically connects to the respective base after a one-time pairing and wirelessly transmits the video and audio signal of the source. One touch of the sensor surface is enough and the dongle goes live. A haptic and optical feedback (vibration and color change) confirms its activation.

Connected and ready for transmission
"On the air"

USB-A Dongle

These dongles are simply connected to the USB port of the laptop on which the user installs the PC client software in a matter of seconds. The software captures the screen content X times per second and transfers it to the base.


The dongle is connected to the HDMI output of a playback device. The dongle transmits the HDMI video and audio signal as if the source was connected to the display device by an HDMI cable. Drivers are not required, so pure playback devices like DVD players, cameras or visualizers can be integrated into a wireless presentation as well.

The power supply and the touch back function are provided through the additional USB connector.

USB-C Dongle

More and more current IT devices (solely) have an USB-C port This allows not only data but also video connections (DP Alt Mode). The USB-C dongle makes use of exactly this functional diversity and transmits not only the video and audio signals via a single cable, but also supplies the dongle with power and transmits the touch back function.

Technical details

Dongles – technical details
Ref. No. 7488000301 7488000313 7488000314
Compatible to base Klick & Show K-10-S, K-10-L, K-40
Interface (m) USB-A HDMI (19pin), USB-A USB-C
Video Standard N/A HDMI 1.4, HDCP 1.4 DP 1.2, eDP 1.4, HDCP 1.3
USB Standard 2.0
supported resolution up to 4096×2160 up to 2540×1440@60Hz up to 2540×1440@60Hz
Audio 2CH PC embedded HDMI PCM 2CH 2CH PCM
Touch-Back / USB-HID support yes
Frame rate (output) 60fps (max.)
Resolution (output) 1080p (max.)
Latency < 130 ms < 100 ms < 100 ms
WiFi frequency supported 2.4 / 5 GHz
WiFi standards IEEE 802.11b/g/n/ac
WiFi antennas MIMO 2×2
WiFi bandwith up to 1200 Mbit/s
WiFi securty supported WPA PSK, WPA2 PSK
Housing / color plastic / black
LED green / red
Control sensor button with vibration feedback
Dimensions (W x D x H) 80 x 65 x 13 mm
Length of connection cable about 11 cm HDMI: 11 cm, USB 21 cm about 11 cm
Weight 0.1 kg
Power consumption (max.) 2 W 2.5 W 3 W
Power supply via USB 5V



Storage for four dongles


USB-C adapter for the use of the KLICK&SHOW USB-A dongle at the USB-C port of a PC/Mac

USB A/C Drive

Dual USB stick with USB-A and USB-C
interface in a high-quality
stainless steel housing

  • 16 GB capacity
  • USB 3.2 Gen1 (5 Gbit/s)