The Pyle PBKSP30DB Hi-Fi Powered Bookshelf Speakers are designed to bring pro audio studio monitor performance into your home or office. Offering 300W of power output, these speakers feature a 4"" speaker driver and 1"" dome tweeter for a well-balanced and full-range stereo sound. Bluetooth 5.0 connectivity allows you to easily stream audio from smartphones, tablets, or computers up to 30 feet away. Additionally, these speakers support MP3 digital files and Usb flash drives up to 16GB. With an Rca input, adjustable volume, and bass control, this speaker set is ideal for any desktop or home entertainment system.