Pair Acoustic Speakers 150W max with USB and Bluetooth The LY-31 set of amplified loudspeakers consists of an active and a passive speaker and guarantees a powerful sound with excellent audio pressure.ÿThe speaker set is ideal for medium to large sized rooms The sturdy structure of the pair of speakers, consisting of an MDF frame and practical handles on the top, allows them to be transported and used even outdoors Active speaker connections: 2 x 6.3mm jack inputs for microphone, 1 USB input, 1 SD input, 1 stereo RCA input The speaker has independent microphone volume adjustment and ECHO effect on the microphone Adjustment of Treble and Bass Bluetooth function with which stream music wirelessly directly from your smartphone FM radio with external antenna   Details: Max power: 150W USB input Color: Black Woofer: 8" Dimensions (cm): 47x28x24