ViolinSmart Full Size 4/4 Electric Violin Set, Black Full Size 4/4 Electric Silent Violin 9 Volt battery advance amplifier (Other seller might be selling the low end 3 volt amplifier using AA battery) Great for beginners Black tuning pegs, chinrest, fingerboard & tailpiece Comes complete with Wooden Bow, Padded Gig Bag, Rosin, EarPhone, 9V Battery & Amplifier Cable