Applicable equipment Wireless Bluetooth connection, whether Windows, Android, or lOS can be perfectly compatible! lf the desktop does not have Bluetooth, it can be equipped with a Bluetooth receiver. The laser projection keyboard has no physical keys and is connected to the main device via Bluetooth. It is small in size, easy to carry, and can adapt to most working environments. Colour:silver Material:plastic Package Contents: 1 * Keyboard 1 * USB cable 1 * Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.