Features This includes (1) Soundcraft Si Expression 1 with all items as packaged by Soundcraft, PLUS: (1) AKG K 77 Closed-Back Circumaural Headphones to monitor sounds from the stage (1) Rugged Handheld Microphone to communicate with the artists on stage Sonic Sense One-Year Extended Warranty Adds One Year to Manufacturer's Warranty Description Product Description This specially priced monitor and talkback bundle for the Soundcraft Si Expression 1 16-Channel Digital Mixing Console (16 Mic Pres, 66 Input Processing Channels, Automation, Lexicon Hardware-Based Effects, and Expression Slot) also contains: (1) AKG K 77 Closed-Back Circumaural Headphones to monitor sounds from the stage and (1) Rugged Handheld Microphone (with on/off switch) to communicate with the artists on stage.