"Description: 100% Brand new and high quality. The guitar is the instrument interface adapter adapter and guitar and tone mobile software an easy to use Download free software from iTunes App Store from Ampli-Tube IPhone, iPod or iPad adapter into the headphone jack Insert bass-guitar adaptation Stresses headphones or external speakers into the headphone jack adapter You can turn on and began to shake Ampli-Tube use Size: Diameter 2cm, height 7cm Color: Black Applicable: iPhone / iPad / iPod What's included : 1 xGuitar converter 1 x User Manual"