This keyboard with retro keyboard and notch design, fresh colors, beautiful and practical. This keyboard is a universal model that supports multiple operating systems and is perfect for mini keyboards. It is constructed of abs material. The length of the keyboard is 35.6 cm; the width is 21.8 cm; and the height is 6.7 cm. It is suitable for Windows,for android,and for ios system. Item Name: Keyboard Material: ABS Features: Bluetooth-compatible, Recess-design, Vintage Usage Scenarios: Home, Office Bluetooth-compatible: BT5.0 Power Supply: 2 x AAA Battery Multiple Operating Systems: Support for Windows/ for Android/ for IOS System Size Details: Size: 35.6cm x 21.8cm x 6.7cm/14.02" x 8.58" x 2.64" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Keyboard 1 x User Munual 1 x Red ESC Keycaps 2 x AAA Battery