KHOMO &reg; Black 360 Degree Rotating Stand Case with DETACHABLE Bluetooth Keyboard for Amazon Kindle Fire HD 7'' (2nd Gen 2013-2014) Compatible with Kindle Fire Hd 7'' 2nd Generation (Released October 2013) Detachable ultra slim (7.5 mm) Bluetooth keyboard with 10M range. Bluetooth keyboard delivers wireless operation and includes Kindle specific keys. Keyboard, USB connector and on/off switches are more durable than many ordinary KHOMO is a registered trademark and best-seller of Kindle cases.