1. Wireless connection, plug and play This keyboard adopts 2.4GHz wireless technology, just plug the wireless receiver into the USB port of the computer to use, no device driver is required. The signal transmission is stable, and the use range can reach up to 10m. 2. Colorful Round Keycap The keycaps are made of ABS material with a smooth and comfortable surface. The cute round keycaps and stylish and colorful colors bring you a pleasant typing experience. 3. and This product weighs only 105g and measures 135 x 90 x 25mm. Its lightweight design makes it easy to carry and is your reliable assistant for digital entry. 4. Multifunction keyWhen the Numlock light is on, the functions of 2/4/6/8 are numeric keys. When the Numlock light is off, the functions of 2/4/6/8 are direction keys. 5. Product GuaranteeAll of our products are inspected for quality before shipping. If there are quality issues with the product within one year of purchase, we a refund or a replacement.