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Black wireless keyboard and mouse set with USB receiver

4XEM

4XEM 4XWLSKMS1 Wireless Keyboard and Mouse Combo Black

SKU CH-SKTR-PKR47 MPN 4XWLSKMS1

A wireless keyboard and mouse set with 20 ft range, spill-resistant membrane keys, and a shared USB 2.0 receiver

  • Product nameWireless Mouse and Keyboard Combo
  • Keyboard connectionUSB 2.0
  • Keyboard switchesMembrane
  • Keyboard colorBlack
  • Tracking technologyOptical
  • Button count3
  • Works up to 20 ft away with 2.4 GHz wireless
  • Water-resistant membrane protects keyboard from accidental spills
  • Optical mouse tracks on most surfaces with three buttons
  • Compatible with Windows, Mac OS and Linux via USB-A 2.0
  • LED indicators show power status for both keyboard and mouse

Compact Wireless Desktop Set

The 4XEM 4XWLSKMS1 combines a membrane keyboard and an optical mouse in a single 2.4 GHz wireless kit. It connects through one USB-A 2.0 receiver stored inside the mouse. The set suits office workers and home users who want a tidy, cable-free desktop for everyday typing and pointing tasks.

2.4 GHz Wireless Range and USB 2.0 Link

Both keyboard and mouse operate up to 20 ft from the receiver in clear air. The USB 2.0 interface limits data throughput to the standard 2.0 specification, so the combo is not suited for applications that demand higher polling rates or lower latency than the interface allows. Battery life varies with usage because the keyboard needs two AAA cells and the mouse one AA cell, none of which are included.

Check USB Port and OS Compatibility

Verify that your system has a free USB-A port and runs Windows 7, 8, 8.1, 10, Mac OS or Linux. The keyboard uses a QWERTY layout and the mouse is ambidextrous, so left-handed users can operate it without extra configuration. Buyers who need programmable keys, backlighting or a rechargeable power source should look at other models.

How it compares

Measured against everything we stock in Wireless & Wired Keyboards, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 90% of the 603 comparable items (median $48.99).

Specifications

Product
Brand name4XEM
Model name4XWLSKMS1
Product nameWireless Mouse and Keyboard Combo
Keyboard colorBlack
Product type2.4 GHz Wireless
Mouse colorBlack
Performance
Tracking technologyOptical
Connectivity
Keyboard connectionUSB 2.0
Power
Power type(Keyboard): 2x AAA Batteries (Not Included)
Power Source (Mouse): 1x AA Batteries (Not Included)
Size & build
Keyboard switchesMembrane
Product dimensions1.06 in × 16.54 in × 4.68 in
Shipping weight0.35 kg
Package size497 × 130 × 35 mm
Compatibility
Compatible systemsWindows 7, 8, 8.1, 10
Mac OS
Linux
RequirementsAvailable USB port
In the box
Includes mouseYes
In the box1 x Wireless Keyboard
1 x Wireless Mouse
1 x USB Receiver (Located in Mouse)
More details
Button count3
Scroll type1 x Wheel

Questions about this item

Which version of the 4XEM 4XWLSKMS1 combo should I pick if I only have USB 2.0 ports?

The single listed model uses a USB 2.0 receiver, so it works directly with any USB 2.0 or newer port without an adapter.

What does the 2.4 GHz wireless spec mean for daily use at my desk?

It gives a 20 ft range for both keyboard and mouse, letting you type or click from across a typical room without cables.

How does the USB 2.0 interface limit the keyboard and mouse in practice?

The receiver plugs into a USB-A 2.0 port and handles all data; bandwidth is ample for keystrokes and optical tracking, so there is no noticeable lag.

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