How many Bluetooth device groups can I pair with the RK100, and how can I tell which group is active?
The RK100 supports three sets of Bluetooth code matching indicator groups. Group Q is indicated by a red light, Group W is indicated by a blue light, and Group E is indicated by a green light. (Page 1)
From the official Royal Kludge RK100 Mechanical Wireless Keyboard manual, page 1
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