Mini and lightweight, easy to carry and use. Support plug and play, no need to install driver. Multiple device support, can connect with smart TV, projectors, laptop via USB adapter. Wireless design, no messy wires, more convenient for your usage. Item Name: Wireless Keyboard Material: Plastic Cement Wireless Transmission Frequency: 2.4GHz Interface: USB Battery: 2 x AAA Battery (Not Included) Multimedia Function Key: Yes Shortcut Keys: Yes Features: Portable, Mini, Wireless, Bluetooth, with Touch Pad Length: 146.8mm/5.78" (Approx.) Width: 97.5mm/3.84" (Approx.) Thickness: 19mm/0.75" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Keyboard (Battery Not Included)