HiFi Surround Sound: The TV sound bar uses optimized 3D sound effects, with 4×Full Range driver, 2×Silk membrane Tweeter, giving you a stunning 3D surround sound experience. HDMI-ARC decoding, which reduce sound loss and brings you HiFi sound, supports Dolby audio, makes you feel like you are in a movie cinema. Bass Adjust & Dynamic: The soundbar with built-in subwoofer has 10-step bass adjustment, deep bass won't disturb your sleep, you can adjust the bass with on the remote easily. The Dynamic mode unleashes the full power of the subwoofer, allowing you to immerse yourself in the grand scenes of movies. 9 EQ Mode: Bluetooth Soundbar has HiFi, Dynamic, Night, Game, Music, Movie, News, 3D, Bass+/-. HiFi Mode allows you to listen clear and real sound, you will not miss every detail in the movie or music. Dynamic bring you powerful sound, suitable for shocking music, grand movies. HDMI-ARC & LED OFF: The Soundbar adopts HDMI-CRC-CEC, which reduce sound loss, restores real and clear sound. The CEC function allows you to adjust the volume or switch with TV remote control. One button to turn off LED display, the light will not disturb your sleep. Wireless Bluetooth 5.0: Wireless sound bar uses the latest Bluetooth 5.0 chip, Support one-click connection to your iPhone/Andriod/Laptop and so on. the tv speaker also supports HDMI/Optical/AUX/USB, optical & RCA cable are included. 2 year warranty, 24/ 7 online customer service.