HD Stereo Sound Quality : Built-in stereo sound and bass speaker, providing high-performance optimized sound and full-range stereo sound reproduction. This pa system is equipped with 6.5'' woofer and 2'' tweeters, it can amplifier your voice, when playing the radio or stream songs, the Karaoke machines won't distort the audio even at higher volumes. With a powerful stereo sound and a active subwoofer, it can amplifie higher as well as lower bass frequencies. Multi-function Bluetooth Party Speaker : This outdoor speaker built in Bluetooth 5.0 chips, which ensure more transmission stably and longer distance, it also supports Micro TF card and Flash USB connectivity, Works with all of your favorite devices like iPhone, Android mobile phone, iPad, Tablet, PC, no cables needed , Great for churches, small parties, schools, class rooms, gyms, corporate meetings & presentaions. TWS Mode: When pairing two same big bluetooth speakers together, the powerful and stereo sound will be synchronized and surround you by 2 channels. With the loud and rich sound quality, you can wander in the world of music. Rechargeable Battery : The portable bocinas speaker built-in 5200mAh High Efficiency Li-ion, which guarantees non-stop music playing up to 8 hours playtime on maximum volume. If it is charged all the time, it can be used all the time. Great for Any Occasion: Compact and lightweight to carry around for indoor and outdoor use Lightweight Weighs a merely 6.42 Pounds, Enjoy your favorite music wherever you go - beach, gym, outdoor party or your home garden.(NOTE: If you are not satisfied with this karaoke speaker or have any other questions, please feel free to contact us, we promise that we will offer you a satisfying solution).