Tablet keyboard. I purchased this tablet from Docomo and stored it without using it. Please note that the operation is not guaranteed as several years have passed since the purchase. [Quote below] This is a Bluetooth QWERTY keyboard for the Samsung Galaxy Tab S 8.4. It is an accessory for the Galaxy Tab S series released in 2014. It also functions as a cover to protect the tablet. It connects wirelessly to the tablet using Bluetooth technology. It has a physical QWERTY keyboard layout.