Product description    Korean-English keyboard * Only case product. smartphone device not included. * Compatible with only Samsung Galaxy S8 The Samsung Galaxy S8 Keyboard Cover provides the protection of a standard protective cover with the convenience and functionality of a mechanical QWERTY keyboard. Pairing or separate battery not required. Simply clip the keyboard to the front of your device with the included protective cover installed ? your screen interface adjusts automatically to accommodate the keyboard. Store the keyboard on the backside of the protective cover when not in use. TECH SPECS - Color - Black / Color name follows the manufacturer's name. - Compatible Models - Galaxy S8 - Packaging Contents - Keyboard Cover - Dimension (WxHxD) - 72.46 x 151.91 x 13.35 mm - Weight - 35.3 g - Type - Keyboard Cover - Interface - C-type - Key Quantity - 38 key - System Requirements - Android OS 6.0 or higher - Packaging Contents - keyboard， Protective Cover