Logitech K400 Plus review: the couch keyboard that never left the top of the charts
A compact wireless keyboard with a built-in touchpad that has been the default way to drive a PC-connected TV from the couch since 2015 — quiet keys, media controls, 10m of range, and up to 18 months on two AA batteries.
- Logitech K400
- Logitech K600
- Logitech K270
Updated 2026-07-17. Interest is relative search demand (0–100), not sales figures.
Logitech K400 Plus wireless touch keyboard specs
| Battery | Up to 18 months on two AA |
|---|---|
| Touchpad | 3.5-inch multi-touch |
| Range | 2.4 GHz USB receiver, ~10 m / 33 ft |
| Media controls | Dedicated volume and mute |
| Compatibility | Windows, Android, ChromeOS |
Manufacturer's published specifications.
More photos
Verdict: if a computer is plugged into your TV, this is the one device that replaces a keyboard and a mouse on the sofa. It isn’t a typing-first board — it’s a living-room remote that happens to have full QWERTY, and a decade of steady demand says that trade is exactly what people want.
The specs that matter
Per Logitech’s official listing:
- Touchpad built in: a 3.5-inch multi-touch touchpad with adjustable cursor speed sits to the right of the keys — one device to type and point.
- Range: 2.4GHz wireless with a USB receiver, rated to about 10m / 33ft — living-room distances, through a coffee table.
- Battery: up to 18 months on two AA batteries, with an on/off switch.
- Media controls: dedicated volume and mute keys plus arrow/media shortcuts laid out for lean-back use; the keys are low-profile and quiet.
- Compatibility: Windows, Android and ChromeOS devices with a USB port.
What reviewers love
- It solves the HTPC problem in one purchase. Reviewers consistently frame it the same way: every alternative needs either a second device or a lap-sized desk, and the K400 Plus needs neither.
- The battery claim holds up. Long-term write-ups routinely mention going a year-plus without thinking about it.
- It stays connected at TV distance, which cheaper touchpad boards are notorious for failing at.
Worth knowing before you buy
- It’s not a desk keyboard. The layout is compressed, there’s no numpad, and the typing feel is basic membrane — buying it as a main work keyboard misses the point.
- 2.4GHz receiver only, no Bluetooth — you need a free USB-A port on the TV-connected machine.
- The touchpad is small by laptop standards; it’s made for menus and playback, not photo editing.
- Our unit art shows the UK layout (Logitech’s official gallery asset); the US listing ships ANSI.
Who it’s for
Anyone driving a media PC, home-theater setup, or wall-mounted display from across the room — and anyone who wants one cheap, durable board for a utility machine in the garage, kitchen, or classroom.