I'm thinking about Japan Technical Conformity Certified Bluetooth Keyboard. Which devices are certified? Zoe February 13, 2023 07:53 Updated Our K1, K2, and K8 are Japan Technical Conformity Certified. Related articles The paint on the bottom left edge has started to dull compared to the rest of the keyboard, most likely because of the more frequent contact with my hands. Do you have a solution for this? Does the Q1 support per-key RGB? There is no issue with the Bluetooth connection on my phone, but the Bluetooth connection seems unstable on my Mac. Are red switches on your keyboards pre-lubed? Do the Keychron keyboards work with Linux/ChromeOS/Ubuntu?