VIOLINSMART Full Size 4/4 Red/Pink Electric Violin Complete Set 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) Built-In Should Rest for extra comfort Comes complete with Wooden Bow, Padded Gig Bag, Rosin, EarPhone, 9V Battery & Amplifier Cable