The UBOTIE SK-621BT Bluetooth Wireless Keyboard is a compact and portable keyboard with 84 keys, making it suitable for use with a variety of devices including PCs, laptops, tablets, and smartphones. It features a retro green color with LED backlighting and offers up to 100 hours of battery life. With Bluetooth connectivity and a wireless range of up to 33 feet, this keyboard is convenient for gaming and everyday use. Its ergonomic design, illuminated keys, and quiet operation make it a practical choice for those looking for a reliable and versatile keyboard option.