Compact in size, the R980T is an efficient bookshelf solution for desktops and small spaces. Producing a total 24 watts of sound (12W RMS each), the R980T are the perfect well-rounded stereo speaker. Each speaker contains a 4-inch bass driver and 13mm tweeter that clearly replicates enjoyable sound for listeners. The powered amplified bookshelf speakers conveniently connect to any device that has a 3.5mm headphone output or dual RCA output. Connect to two devices via AUX at the same time, no plugging and switching needed. Any audiophile’s desire to have a proper studio setup will be fulfilled with the R980T powered bookshelf speakers. The sound produced from Edifier’s R980T satisfies any detail oriented reviewer; its hailed for being vibrant and alive filling the room with rich sensations. These amplified bookshelf speakers exemplify the idea of big things coming in small packages. "Suitable for desktops, laptops, TV, record players and much more No need for amplifier or receiver just plug into source and play Flared bass reflex port enhances overall bass sound "