The SA-760 has a Preview 4.3" LCD Screen, USB Music/Vocal Record Feature, 9 Step Digital Key Control, 3 HDMI inputs and 1 Output, it also has Optical and Coaxial Audio Inputs and features Bluetooth connectivity so you can stream music directly from your Phone, Tablet or Smart TV so you can sing-along and mix your vocals.
It also features 3x Composite Audio/Video inputs and 1 output set. (See rear Amplifier Photo - Below)
You have 4 Microphone Inputs (2x Front/Back) with shared (Volume, Balance, Echo, Low / Mid / High Controls) -12db Gain push button.
You also have full Echo Effect (Volume, Low / Mid / High, Repeat, Delay) with independent Stereo/Mono push button selector.
For the Music you have (Volume, Balance, Low / Mid / High) controls and Disco button and Music Equalizer to get the sound just the way you like it. Front Mobile Phone/Line Audio In Jacks (RCA + 3.5mm).
The SA-760 also has a Master controls for (Music & Microphone Volumes), plus the added benefit of Key Control on the front panel so you can step up and down the key of the song being played, making it easier for you to perform the song at your vocal capability.