Logitech

Logitech K400 Plus Wireless Touch Keyboard Renewed

4.3 (70 reviews)

One keyboard, one touchpad, zero cables — total couch-to-TV PC control up to 33 feet away.

$20.85*$25.99Save 19%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Logitech K400 Plus is a compact wireless keyboard with an integrated 3.5-inch multi-touch touchpad, purpose-built for controlling a TV-connected PC from a couch or media room seating position. Its 2.4GHz Unifying receiver delivers a rated range of 10 meters (33 feet) — enough to span most living room layouts without signal loss. What those specs mean in practice: you can type a YouTube search query, scroll through results, and adjust playback volume without leaving your seat and without needing a separate mouse on a surface. The keyboard is compatible with Windows 7 through current releases, Android 7 and later, and Chrome OS, covering the most common HTPC and Android TV box configurations.

This is not a productivity keyboard. The key travel is deliberately shallow and quiet — optimized for occasional input rather than extended typing sessions — and the touchpad, while multi-touch capable, reflects the constraints of its form factor. The K400 Plus belongs in builds where simplicity and couch-usability outweigh raw input precision: home theater PCs, living room streaming boxes, digital signage terminals, or any setup where a full keyboard-and-mouse pair is impractical. The 18-month battery rating is a meaningful differentiator in this category; it means the keyboard genuinely disappears into the background rather than demanding attention. This is a renewed unit, so buyers should treat cosmetic condition as a variable while functional reliability remains the core value proposition.

Key Features

Total Control From Couch - Wireless plug-and-play keyboard with integrated touchpad for total control of your TV-connected PC from your couch. K400 is a quiet, easy-to-use keyboard with a built-in touchpad, plus all the hotkeys Windows and Android users know and love. Complete with media controls that make navigating your PC-controlled TV a breeze.

Designed For Laid-Back Control - The built-in touchpad keeps your typing and navigation all in one place. When it comes to your PC-controlled TV, K400 makes navigation easier with no need to connect keyboard and mouse separately (or get off the couch). So you can seamlessly watch videos, browse the web, or chat with friends.

Built to Keep Going - K400 is built with the same high quality and reliability standards that have made Logitech the #1 global leader for mice and keyboards. Up to 18 months of battery life eliminates the hassle of frequent battery changes, with a handy on/off switch and power-saving technology that preserve battery life. The spill-resistant design and durable keys keep you on-track despite any mishaps.

Quiet Keys, Large Touchpad - Comfortable, quiet keys and a large touchpad make navigating entertainment effortless, even setup is a snap thanks to the tiny, plug-and-play USB Unifying receiver.

Wireless and Compatible - Powerful, lag-free wireless gives you up to 33 ft (10 meters) of freedom with no delays or dropouts. Designed for use with Windows 7, Windows 8, Windows 10 and later, Android 7 or later, and Chrome OS.

Specifications

Brand
Logitech
Model
K400 Plus
Connectivity
2.4GHz Wireless (USB Unifying Receiver)
Wireless Range
Up to 33 ft (10 meters)
Touchpad Size
3.5 inches (integrated multi-touch)
Battery Life
Up to 18 months
OS Compatibility
Windows 7/8/10+, Android 7+, Chrome OS
Special Features
Spill-resistant, on/off switch, quiet keys
Color
Black
Condition
Renewed

Pros & Cons

👍 Pros

  • Integrated 3.5-inch multi-touch touchpad eliminates the need for a separate mouse in HTPC setups
  • Up to 18-month battery life with a single AA set reduces maintenance interruptions
  • Plug-and-play USB Unifying receiver requires no driver installation on Windows, Android, or Chrome OS
  • 33-foot (10-meter) wireless range covers living room distances without signal degradation
  • Spill-resistant construction adds durability in casual, non-desk environments

👎 Cons

  • No backlit keys, making it difficult to use in dark home theater environments where it is most commonly deployed
  • Touchpad accuracy is adequate for casual TV navigation but noticeably imprecise compared to a standalone mouse for detailed pointer work
  • Renewed/refurbished unit condition means the keyboard and touchpad surface may show cosmetic wear not present in new units
  • No Bluetooth — the required USB Unifying receiver occupies a USB-A port permanently, which can be a constraint on TVs or PCs with limited ports
  • Key travel is shallow and quiet by design, which some typists find unsatisfying for extended text entry

Frequently Asked Questions

No. It uses a plug-and-play USB Unifying receiver — insert it and the keyboard is immediately recognized by Windows, Android, or Chrome OS with no driver installation required.
The touchpad measures 3.5 inches diagonally and supports multi-touch input. This means two-finger scrolling works natively, which is particularly useful when browsing or navigating media apps from the couch.
Logitech rates the K400 Plus at up to 18 months on a single set of standard AA batteries under typical use. An on/off switch and automatic sleep mode help preserve battery between sessions.
Logitech's Unifying receiver uses a 2.4GHz radio that is designed to be lag-free within the rated 10-meter range. Under normal indoor conditions with no significant RF interference, key presses and touchpad input register without perceptible delay.
The Unifying receiver supports pairing up to six compatible Logitech devices, but the K400 Plus itself pairs to one receiver at a time. Switching between PCs requires moving the receiver or re-pairing.