Reviews Keyboard With Optical Trackball

CHERRY ML 4420 UltraSlim PS/2 Keyboard w/Trackball. Black - 83 key

Cherry ML mechanical keyswitches: the industry gold standard for superior responsiveness, precision, and "feel".
Slim 15” keyboard with 83 keys and ultraflat optical trackball, mechanical low profile keyswitches rated at 20 million actuations.
Compact & durable - withstands harsh environments to ensure long product lifetime.
FN key embedded numpad - get the functionality of a full sized keyboard in a compact form factor.

Periboard-521 is a wired Keyboard with 0. 55" (14mm) trackball. Keyboard Dimension: 17. 95"X6. 30"X1. 18" (456x160x30mm). with normal size key caps, you can keep your typing speed and accuracy.
Built-in 0. 55" (14mm) Optical trackball with control of mouse pointing and scrolling function (FN+F9) on entertainment and work.
It also fit with various industrial and professional use.
Added 10 multi media, with control of video, Audio, and internet feature, easy to access with FN key.
System requirements: Windows 7, 8, 10. Wired USB connection. Package includes: 1 x per I board. 12-Month limited.

[PLUG & PLAY 2.4G WIRELESS CONNECTION]:It adopts high quality 2.4Ghz chipset, less batteries consumption and more stable wireless connection.The keyboard need 2 x AA battery. (Battery Not Included).
[KEYBOARD AND OPTICAL TRACKBALL MOUSE COMBINATION]:You don't need a mouse to do all kinds of mouses to do. You can control the mouse pointer through the trackball in the upper right corner, and use the button in the upper left corner to confirm or right -click operation.
[BUIT-IN- MULTI-MEDIA NAVIGATION SHORT KEYS]:Very convenient for internet and the Music player apps.
Twelve media keys make it easy to access music, volume, apps, your preferred internet browser..
[WIDE COMPATIBILITY]: Compatible with Mac OS and Windows OS / 2000 / XP / Vista / 7 / 8 / 10. The keyboard and mouse works right out of the box. Just plug into the USB port, and it's ready to go. No downloads, no setup, no fuss..

Ergonomic contour design - Minimizes pain and discomfort in forearm muscles from twisting, which can cause carpal tunnel syndrome..
Built-in 1.25” large trackball with optical sensor - accurately and precisely tracks with less muscle movement for maximum comfort..
East to install programmable driver - friendly user interface that lets you change button assignments, DPI sensitivity, scrolling speed..
Removable trackball - Can Be easily removed by pushing the trackball from underneath the mouse..
Adjustable DPI switch - adjustable cursor moving speed from 400-4, 800 DPI..
Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse.

Ergonomic contour design - Minimizes pain and discomfort in forearm muscles from twisting, which can cause carpal tunnel syndrome..
Built-in 1.5” large trackball with optical sensor - accurately and precisely tracks with less muscle movement for maximum comfort..
East to install programmable driver - friendly user interface that lets you change button assignments, DPI sensitivity, scrolling speed..
Removable trackball - Can Be easily removed by pushing the trackball from underneath the mouse..
Adjustable DPI switch - adjustable cursor moving speed from 400-4, 800 DPI..
Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse.

The glossy surface offers smooth movement, perfect for fast moving and multiple screens control work.
9 advanced function keys with multimedia and keyboard lock function.
Easy to removed and clean the trackball by taping it from the bottom hole of the keyboard.
Mechanical keyboard with built-in 2.17 Inch (55mm) large trackball and tilting scroll wheel.
Easily adjust the sensitivity of the trackball movement....

★ ERGONOMIC DESIGN - EIGIIS Handheld Trackball Mouse can greatly ease the harm of palm joint or muscle on your wrist and muscle for long time using mouse. Good to reduce the chances for Arthritis and CTS suffers..
★ TRACKBALL COMFORT - Hold EIGIIS Trackball Handheld Mouse in your hand like a trigger and use your thumb to move around. Sculpted shape supports your hand staying in one place, move the cursor without moving your arm.Suitable for both left and right hand - New style, no space limitation, left/right clickers, fit left and right handed users..
★ ADJUSTABLE DPI - EIGIIS Finger Ergonomic Mouse have 800/1200/1400/1600 DPI resolution optical tracking technology that provides higher sensitivity than standard optical mice.EIGIIS wireless trackball mouse have a Sensitive rolling ball and frequency stable 2.4GHz receiver. Powered by One AAA battery (not included).
★ WIDE APPLICATION - EIGIIS Ergonomic Trackball Mouse including USB 2.0 interface, plug and play, no software required. Suitable for laptops and desktops, but NOT for tablet. Compatible with: Windows 98/ 2000 / XP / VISTA / Win7/ Win10/ Linux / Unix / Mac / OS..
★ WHY CHOOSE TO BUY EIGIIS TRACKBALL MOUSE - EIGIIS purpose is timely, professional and integrity. Whatever reason, If you ....

TWO-IN-ONE KEYBOARD - Keyboard with a built-in 0.55 inches optical trackball with mouse function and left and right click for fluid screen navigation and selections.
EASY WIRELESS SETUP - Wireless 2.4 GHz technology with plug and play Nano receiver.
Built-in storage compartment and on/off power switch.
PROFESSIONAL APPLICATION - Fit with kiosk, 19 inches (ca. 48 cm) rack, Professional and various industrial applications.
CONVENIENT MEDIA KEYS - Built-in 12 multimedia hot keys, handy access to multimedia, easily switching among different working scenarios.
COMPATIBILITY - One free USB port, Windows 7,8, and 10.
Package includes: PERIBOARD-706 Plus, USB receiver, and manual.