The Bose TV Speaker is a small soundbar that clarifies speech and improves overall TV sound. Inside there are two full-range drivers angled for wide, spatial sound, while the center tweeter specifically focuses on clarifying speech. Designed with simplicity in mind, a single connection to your TV via an optical audio cable (included) or an HDMI cable (sold separately) has you up and running in no time. And at just over 2''(5 cm) tall, this TV Speaker is small enough to fit just about anywhere. Small LED lights on the front turn on and/or change color when certain features are enabled. The Bose TV Speaker also has HDMI-CEC, which allows the TV and soundbar to communicate when connected by an HDMI cable. When you turn the TV on, the soundbar will automatically turn on too, and you can even continue using your current TV remote to control the volume of the soundbar. However, the Bose TV Speaker has its own remote as well. And on it, you can enable dialogue mode to further elevate center vocals, pair your Bluetooth� device to wirelessly stream your favorite music or podcast,or add a bass boost for extra depth. If you want to expand your system, you can any time by adding a wired subwoofer for more theater-quality home theater sound. The Bose TV Speaker is compatible with the Bose Bass Module 500 and 700 (Bose Bass Module Connection Cable sold separately).Designed with simplicity in mind, the Bose TV Speaker uses a single connection to your TV via an optical audio cable (included) or an HDMI cable (sold separately), so you can go from unboxing to watching in no time. And with HDMI-CEC, you can use your current TV remote to control the volume of the speaker. It detects a signal from your TV when turned on and automatically turns on too.