KHOMO &reg; Black 360 Degree Rotating Stand Case with DETACHABLE Bluetooth Keyboard for Amazon Kindle Fire HDX 8.9' Detachable ultra slim (7.5 mm) Bluetooth keyboard with 10M range. Real "hard" laptop style keyboard. Not cheap silicone keyboard as other cases. Bluetooth keyboard delivers wireless operation and includes Kindle specific keys. For Kindle HDX 8.9'' This case is NOT compatible with Kindle HD 8.9 or Kindle 8. KHOMO is a registered trademark and best-seller of Kindle cases.