Built Optical, Bluetooth, HDMI-Arc, Digital Equalizer & Anti-Feedback. Model: 2023 Touch Screen. FREE: 2 X WIRELESS MICS. Anti-Feedback & Touch Screen. Max Power Output: 1500W + 1500W. Free: 2 x Anti-Feedback Wireless Microphones. 4.3 Inches Touch Screen Monitor. Newest Model: 2023 Improved HDMI ARC for “Upstream” and “Dowstream” Signal over HDMI Port on TV (Perfect for Youtube Streaming Karaoke). Individual Volume: Music, Microphone & Effect. Built in Anti-Howling & Feedback Suppression. Built in Key Pitch Control: +5 Key Up & -5 Key Down. Digital Optical Audio Input (Connect directly from any Smart TV for Youtube Karaoke). Built Digital EQualizer Individual Control: Music, Microphone & Effect. Built-in MP3 Player Module. Bluetooth Function send/receive from any device (Iphone, Ipad, Android, Youtube, Karaoke Apps). Master Effect Volume (Echo, Delay, Repeat, Reverb & High, Low). DSP Digital Sound Processor. Built-in BBE Sonic Maximizer for both vocal and music. Singtronic KSP-1000Pro Professional 3000W Karaoke Amplifier. Free: 2 x UHF Professional Wireless Microphone with Anti-Howling & Feedback Suppressor. Please download the app from the Link Above. Turn on your KSP-1000Pro, select Bluetooth on the Touch Screen. Go to “Settings” on the Android Devices, then go to “Bluetooth” select KSP-1000Pro and Pairing it.