# Lenovo 4X31S04848 Keyboard Mouse included Office RF Wireless + Bluetooth Belgian Black

**URL:** https://aio.lv/en/product--lenovo-4x31s04848--11598371
**Data updated:** 2025-12-31 08:55 (EET)
**Category:** Keyboard Stickers
**Manufacturer:** Lenovo
**Manufacturer code:** 4X31S04848
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 52.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 43.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-4x31s04848--11598371

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 06.07.2026 | 1.89 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The Lenovo 4X31S04848 is a full-size wireless keyboard designed for office use. It features RF Wireless and Bluetooth connectivity, ensuring versatility and convenience. The included mouse complements the keyboard, making it an ideal choice for productivity. The sleek black design adds a professional touch to any workspace.

## Long description

The Lenovo 4X31S04848 is a full-size office keyboard with an included ambidextrous mouse, combining RF 2.4GHz and Bluetooth 5.3 connectivity for flexible, multi-device use. Built for professional environments, the set uses recycled materials and offers a low-profile, spill-resistant keyboard with a numeric keypad and a silent, precise mouse designed for everyday productivity.
Advantages
This keyboard and mouse set supports up to three connected devices (dual Bluetooth 5.3 and a 2.4GHz Lenovo Pro Unified USB receiver) and includes AES-128 encryption for secure wireless communication. The keyboard features quiet low-profile keys, one-touch media function keys (F1–F12), LED indicators for battery and device switching, adjustable tilt legs and spill resistance. The full-size ambidextrous mouse has silent buttons, a 4-way scroll wheel, three-level DPI up to 4000 and long battery life—up to 36 months depending on usage. Materials include 95% post-consumer recycled plastic with a portion reclaimed from Lenovo products.
Suitable for
Office work and general productivity
Multi-device setups (laptops, desktops, tablets) using Bluetooth or 2.4GHz receiver
Users who prefer a silent typing and click experience
Key specifications
Connectivity: Dual Bluetooth 5.3 + Lenovo Pro Unified 2.4GHz USB receiver
Keyboard layout: Full-size (100%) with numeric keypad — Belgian layout
Keyboard features: Low-profile silent keys, 3-zone design, one-touch media keys, LED indicators, adjustable tilt legs, spill-resistant
Mouse: Full-size ambidextrous, 4 buttons (L/R, middle click, DPI), 4-way scroll wheel
Mouse precision: Up to 4000 DPI, 3-level DPI setting
Security: AES-128 encryption
Materials: 95% post-consumer recycled plastic, including reclaimed Lenovo materials
Battery life: Up to 36 months (keyboard and mouse, dependent on usage)
Color: Black; Package: 2 pcs (keyboard + mouse)
How to use
Install the Lenovo Pro Unified USB receiver into an available USB port or pair the keyboard and mouse via Bluetooth 5.3 to compatible devices. Use the device-switch keys to toggle between up to three paired devices. Adjust keyboard tilt legs for a comfortable typing angle and use the one-touch function keys for media control. Change mouse DPI with the dedicated DPI button to match pointer speed to your task. Replace batteries when low-battery LED indicators illuminate.
Usage recommendations
For stable performance in office environments, keep the 2.4GHz receiver unobstructed and within recommended range of the devices; for multi-device workflows, pair frequently used devices via Bluetooth and reserve the USB receiver for the primary workstation.

## Specifications

| Feature | Value |
|---|---|
| Pointing device | No |
| Security algorithms | 128-bit AES |
| Form factor | Ambidextrous |
| Plug and Play | Yes |
| Windows keys | Yes |
| Numeric keypad | Yes |
| Bluetooth version | 5.4 |
| LED indicators | Y |
| Buttons quantity | 8 |
| Frequency band | 2.4 |
| Movement detection technology | Optical |
| Movement resolution | 2400 DPI |
| Mouse included | Yes |
| Mouse dimensions (WxDxH) | 61 x 113 x 36.4 |
| Mouse weight | 60 g |
| Backlight | No |
| Scroll | Yes |
| Number of products included | 2 pc(s) |
| Keyboard dimensions (WxDxH) | 433.6 x 123.4 x 25.2 |
| Keyboard weight | 415 g |
| Power source type | Battery |
| Wireless receiver interface | USB Type-A |
| Receiver included | Yes |
| Device interface | RF Wireless + Bluetooth |
| Scrolling directions | Vertical |
| Adjustable keyboard height | Yes |
| Keyboard style | Straight |
| Scroll type | Wheel |
| Number of batteries (keyboard) | 2 |
| Mouse battery type | AA |
| Keyboard battery type | AAA |
| Service life of battery | 36 month(s) |
| Buttons type | Pressed buttons |
| Number of movement resolution modes | 3 |
| Key pitch | 19.05 mm |
| Buttons durability (million clicks) | 5 |
| Keyboard keys operating life | 10 million characters |
| Product post-consumer recycled plastic | 95 % |
| Mouse battery life | 36 month(s) |
| USB Type-C charging port | No |

### Features

| Feature | Value |
|---|---|
| Certification | CB
TUV Mark
CE
cTUVus
FCC
IC
IMDA
WPC
BIS
SIRIM
NBTC-SDOC
SDPPI
NTC
AITI
TRC
NCC
BSMI
MSIP
VCCI
JRF
KVALITET
ICASA
TRA
NTRA
MOC
PTA
ICT
EQM
BOCRA
ARCT
ETA
NCA
POTRAZ
etc. |
| Connectivity technology | Wireless |
| Product colour | Black |
| Keyboard language | Belgian |
| Keyboard form factor | Full-size (100%) |
| Warranty period | 3 year(s) |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 95 |
| Operating temperature (T-T) | 0 - 40 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 756.3 g |
| Package depth | 145 mm |
| Package height | 44 mm |
| Package width | 529 mm |
| Package type | Box |

### Technical details

| Feature | Value |
|---|---|
| AC adapter included | No |
| Recommended usage | Office |

### Packaging content

| Feature | Value |
|---|---|
| Batteries included | Yes |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 11, Windows 10 |
| Mac operating systems supported | Y |
| Linux operating systems supported | Y |
| Other operating systems supported | ChromeOS |

## FAQ

### How much does the Keyboard Lenovo 4X31S04848 cost, and is it available for purchase?

The price is 52.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 85 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 Wednesday 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: 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.

### Where can I download the instructions for Keyboard Lenovo 4X31S04848?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11598371/66741999_large.webp