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header-product Lenovo 4X31K03931 Keyboard Mouse included RF Wireless + Bluetooth US English Black
141.99 €

Lenovo 4X31K03931 Keyboard Mouse included RF Wireless + Bluetooth US English Black

Keyboard Lenovo 4X31K03931 Photo 1
Keyboard Lenovo 4X31K03931 Photo 2
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Keyboard Lenovo 4X31K03931 Photo 6
Keyboard Lenovo 4X31K03931 Photo 1
Keyboard Lenovo 4X31K03931 Photo 2
Keyboard Lenovo 4X31K03931 Photo 3
Keyboard Lenovo 4X31K03931 Photo 4
Keyboard Lenovo 4X31K03931 Photo 5
Keyboard Lenovo 4X31K03931 Photo 6
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Lenovo 4X31K03931 Keyboard Mouse included RF Wireless + Bluetooth US English Black

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Short description

The Lenovo 4X31K03931 is a full-size wireless keyboard that features both RF Wireless and Bluetooth connectivity. It includes a mouse and is designed for comfortable typing with scissor key switches. The sleek black finish adds a modern touch to any workspace.
Available for order: 1 pcs.
Warranty: 2 Years
SKU: 11423728
Please note: the keyboard layout may not be English. Kindly verify before making a purchase.
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.50 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
17.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
payment
Payment Methods:
Bank transfer
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Product information

Description

The Lenovo 4X31K03931 Keyboard and Mouse combo offers a full-size wireless keyboard with dual RF Wireless and Bluetooth connectivity and an included wireless mouse. The keyboard uses scissor key switches for a responsive typing feel and is finished in black to suit modern workspaces. Both devices are made with approximately 65% recycled material and the mouse features a high-precision 4,000 DPI sensor and an ergonomic bio-rubber body.

Advantages

The combo provides flexible connectivity with RF Wireless and Bluetooth options, a full-size layout for familiar key placement, and scissor switches for improved key stability and typing comfort. The included mouse delivers precise tracking at up to 4,000 DPI and an ergonomic grip thanks to its bio-rubber construction. Using recycled materials reduces environmental impact.

Suitable for

  • Office and home productivity tasks
  • Remote work and multi-device setups (Bluetooth + RF)
  • General desktop use and data entry
  • Users who prefer a full-size US English keyboard layout

Key specifications

  • Device interface: RF Wireless + Bluetooth
  • Keyboard form factor: Full-size (100%)
  • Keyboard language: US English
  • Mouse included: Yes
  • Product colour: Black
  • Mouse sensor: up to 4,000 DPI
  • Materials: ~65% recycled material; mouse body made from bio-rubber

How to use

Connect the keyboard and mouse via RF Wireless using the provided USB receiver or pair each device with a computer or tablet over Bluetooth. Place the keyboard on a flat surface at a comfortable distance and rest your wrists lightly while typing to maintain ergonomic posture. Use the mouse on a stable surface for accurate tracking; adjust pointer speed in the operating system settings if needed.

Usage recommendations

For best battery life and stable operation, keep the keyboard and mouse within the recommended wireless range of the host device, avoid excessive liquid exposure, and pair via RF for minimal latency when performing precision tasks.

Specifications

Device interface:
RF Wireless + Bluetooth
Keyboard form factor:
Full-size (100%)
Mouse included:
Yes
Keyboard language:
US English
Product colour:
Black
All features

Keyboard

Device interface:
RF Wireless + Bluetooth
Keyboard form factor:
Full-size (100%)
Certification:
CE CB BQB TUV Mark cTUVus FCC IC IDA WPC BIS SIRIM NTA SDOCo SDPPI NTC MIC AITI RCM NCC BSMI MSIP VCCI JRF SRRC ANRCETI ICASA MINCOM STA MoC UkrSEPRO ACI FAC TRA NTRA TRC MOC ICT INACOM NCC ANRT CERT CNC/AFTIC ANATEL SUBTEL IFETEL TUV NOM
Keyboard language:
US English
Pointing device:
No
Windows keys:
Yes
Numeric keypad:
Yes
Connectivity technology:
Wireless
Multimedia keys:
Yes
Keyboard key switch:
Scissor key switch
Keyboard keys operating life:
10 million characters
Multi-device support:
Yes

Mouse

Mouse included:
Yes
Button functions:
DPI switch, Forward
Buttons quantity:
8
Movement detection technology:
Optical
Movement resolution:
4000 DPI
Scroll:
Yes
Scroll type:
Wheel
Buttons type:
Pressed buttons
Mouse cable length:
1 m
Form factor:
Ambidextrous
Mouse battery type:
Built-in battery
Mouse battery life:
3 month(s)
Mouse on/off switch:
Yes

Design

Product colour:
Black
Backlight:
No
Adjustable keyboard height:
Yes

Weight & dimensions

Mouse dimensions (WxDxH):
111.3 x 62.2 x 36.1
Mouse weight:
80 g
Keyboard dimensions (WxDxH):
437.4 x 128.8 x 14.8
Keyboard weight:
586 g

Power

Battery life (max):
2 h
Power source type:
Battery
Keyboard battery type:
Built-in battery
Service life of battery:
3 month(s)
Charging source:
USB Type-C

Operational conditions

Operating relative humidity (H-H):
20 - 95
Operating temperature (T-T):
0 - 40

Packaging data

Package weight:
885 g
Package depth:
129 mm
Package height:
42 mm
Package width:
538 mm
Package type:
Box

Packaging content

Manual:
Yes
Warranty card:
Yes
Number of products included:
2 pc(s)
Wireless receiver interface:
USB Type-A
Receiver included:
Yes

Battery

Battery technology:
Lithium
Battery capacity:
420 mAh

Description

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Customer reviews

Customer questions

FAQ

How much does the Keyboard Lenovo 4X31K03931 cost, and is it available for purchase?

The price is 141.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Lenovo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lenovo service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: device interface, keyboard form factor, mouse included, keyboard language, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.