Ajazz QS87 Tri-mode Aluminum Mechanical Keyboard[DESCRIPTION] The Ajazz QS87 Tri mode Aluminum Mechanical Keyboard offers advanced tri mode connectivity and customization capabilities with a 0. 85 inch TFT color screen for real time display of vital information. Its 4000mAh battery provides ample power for daily use, while the 8000mAh battery in the 87 Standard and 87 MAX models allows for extended usage. QS87 Version: Enhanced Display and Customization The screen on the QS87 series in Dune Gray