Is there any noticeable lag with wireless keyboards compared to wired?

For typing, there is no perceptible difference between a quality wireless keyboard and a wired keyboard. Logitech's LIGHTSPEED wireless technology (2.4GHz USB dongle) is so low-latency it has been used by gaming keyboards. Bluetooth keyboards have slightly higher latency — typically 7-15ms — which is imperceptible for typing but potentially noticeable in fast-paced gaming. For gaming, use a wired keyboard or LIGHTSPEED. For typing, wireless is effectively equivalent.

How do I connect a wireless keyboard to multiple devices?

Most multi-device keyboards have a physical button or combination that switches the active Bluetooth pairing profile. Logitech MX Keys S has three numbered Easy-Switch keys — press 1, 2, or 3 to switch instantly between paired devices. Keychron keyboards use fn + number key combinations. The keyboard remembers each device's pairing, so you do not need to re-pair when switching. Some keyboards also support simultaneous USB dongle + Bluetooth connections for more flexibility.

What is the best wireless keyboard for Mac?

The Apple Magic Keyboard with Touch ID is the best wireless keyboard for Mac users — it shares the exact same scissor mechanism as MacBook Pro, includes Touch ID for instant biometric login, and the Fn row shows Mac-specific symbols. It connects via USB-C for pairing and charges while connected. For Mac users who want more typing options, the Keychron series is popular because it ships in both Mac and Windows layouts with Mac-specific keycaps.

How long do wireless keyboard batteries last?

Battery life varies dramatically by keyboard type. Low-power keyboards with contextual backlighting (Logitech MX Keys S) claim 5 months without backlight. Mechanical keyboards with per-key RGB (Keychron Q2 Pro) may last only 200-300 hours with RGB on. Keyboards without any backlighting (Microsoft Sculpt) can last 1-2 years on AA batteries. Most wireless keyboards use either rechargeable lithium (USB-C or Micro-USB charging) or replaceable AA/AAA batteries.

Are mechanical wireless keyboards worth it?

Mechanical wireless keyboards are worth it for users who type heavily (writers, programmers) and want the tactile feedback and longevity of mechanical switches. The Keychron K3 Pro and Q2 Pro are the leading options — hotswappable switches mean you can change the typing feel without soldering. The downsides: they are louder than chiclet keyboards (significant in open offices), heavier, and have shorter battery life with RGB enabled. For quiet office environments, a scissor-switch keyboard like Logitech MX Keys S is the better choice.

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