I bought an RK100 with red switches and classic colored caps. I've only had the keyboard for a day, but so far it's absolutely perfect and meets all my expectations. It is currently connected wirelessly over 2.4GHz. Haven't tried Bluetooth yet. I found 0 lags/lags with this keyboard in my wireless network settings, be aware I don't play competitive games but the games I do play the connection is fine. You don't need to press any key to wake up the keyboard before it works wirelessly. The backlight turns off automatically after a few seconds and turns on again when you press a button. I'm not sure if there's a setting to turn on the backlight when you're not typing, but I'm not sure why you would need it as it would probably kill the battery. It's only been a day, so I can't comment on the battery life yet. I will update this review in a few weeks to reflect my experiences in a while. I'm a fairly heavy PC user so this keyboard will fail in just a few weeks. Before this one I had a similar keyboard for $300. I'm a 96% fan of layouts and they're not easy to find, especially with the features on this keyboard. This keyboard may not have the customization options of more expensive keyboards, but it covers all aspects I need.1. 96%2. backlight3. hot swap4. Wireless5. runaway
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