Enjoy immersive stereo sound with the Ultimea BS2 Pro Powered Bookshelf Speakers, featuring 66W Rms total output for music, movies, and everyday listening. Each speaker is equipped with a 4-inch woofer and a 20mm silk-dome tweeter to deliver clear vocals, detailed highs, and balanced bass. Connect directly to your Tv through Hdmi Arc for convenient audio playback. With Hdmi-cec enabled on a compatible Tv, you can use your Tv remote to control speaker power and volume.Enjoy flexible connectivity with Bluetooth 6.0, Optical, and Rca inputs, making it easy to connect compatible smartphones, computers, Tvs, and turntables with a built-in or external phono preamp. Customize your listening experience with the Ultimea App, featuring three Eq presets-Music, Movie, and Game. Fine-tune your sound with the 10-band equalizer, 121-point Eq matrix, or adjustable bass, midrange, and treble settings. The included remote control provides convenient access to volume, input, and sound adjustments.The dedicated Sub Out port lets you connect a compatible powered subwoofer to expand your setup from 2.0 stereo to a 2.1 system. The subwoofer is sold separately. With a built-in amplifier, the BS2 Pro requires no external amplifier or receiver. Simply connect the left passive speaker to the right powered speaker using the included speaker cable, plug in the power cord, and select your audio source.Designed for everyday listening, each compact speaker measures approximately 6.3 6.7 9.4 inches, fitting naturally on desks, shelves, and Tv stands. Enjoy convenient stereo sound while working at your computer, watching TV in the living room, or relaxing in your bedroom or home office