●Functions ? This unit gives you multiple ways to listen to your music including via Bluetooth, TF Card, USB, and Aux cable connection. SB-1501 also plays the FM radio. ●Big Sound in a Compact Design ? The QAISE’s SB-1501 Bluetooth speaker hits 80 Watts of RMS power and a Peak Power of 4500Watts. ●Specs: 15” woofers, 3” tweeters with powerful magnets and a 5-Band equalizer to fine tune the Low, Mid and the High frequencies to your liking. Built-in 12V 4.5A Lead Acid battery to provide 7+ hours of play time. ●Perfect for setting up by the pool, on the deck, in your favorite camp spot, Karaoke nights and much more. ●LED Light Show ? The Blue lights around the woofer creates an ambient vibe turning your room into a club. Control the lights with one switch. ●PA System: SB-1501 Can also be mounted on a universal tripod stand that supports over 40lbs and has a diameter of 35mm. ●SB-1501 Features two 1/4" inch microphone and musical instruments input. Each input audio source is controlled separately providing the ultimate karaoke experience. One Wireless microphone is included with the unit. ●Double the Power - Connect two SB-1501 units via syncPLUS+ Technology. Set both units on Bluetooth mode then sync them via syncPLUS+ to get double the output power. The two units can be placed as far as 30ft from each other creating a stereo sound experience.