KARMANZ 15 inch Portable Trolley Speaker Amplifier Karaoke+2 Wireless Mic

Pa System Speaker Full Set: Includes trolley speaker, microphone, aux input, rca inputs. Mp3 Player with Bluetooth: Built-in bluetooth speaker, aux input, rca outputs, and mp3 playback. Mp4 Player with Bluetooth: Usb / mp3 player, aux-in, and a built-in mic. 15 Inch Active Subwoofer: Trolley subwoofer delivers powerful bass without sacrificing sound. Speker Subwofer 15 Inch: Trolley speaker system offers powerful bass and crystal clear sound with no distortion. High performance individual 15 EXTRA Bass speaker 8 Treble Speaker. 2 Wireless Mic Included). Support 3 wired Microphone Guitar with individual volume control)Microphone priority feature. Unique function to link up unlimited number of speakers connect via RCA cable). Able to connect to PC connect via AUX to RCA cable-included). 50 meter long range wireless mic coverage. 800 Watt high power. Built-in Bluetooth for music playing from mobile phone. Support USB Thumb Drive Micro SD card. Volume adjustment: Master Treble Bass Echo Mi