Feature:1. Guitar is an instrument that has an adapter interface adapter and mobile software for guitar and bass easy to use.2.adapter for headphone plug.3. Insert the bass guitar adaptation.4. Highlights headphones or external speakers to the headphone jack adapter.5. You can turn it on and start shaking. How is it used? You need to download the booster from the App Store and sync it to your iPhone/iPad/iPod touch. From the free free amplitutube app to the full version 19.99*, there are five iPhone and iPad versions available on the App Store, whether you pay for them or use the free version. The design and manufacture of this product has been rigorously tested, and the normal noise level is within the control range. Prefix=o ns="urn:schemas-microsoft-com:office:office" prefix=o ns="urn:schemas-microsoft-com:office:office"Type: Guitar Interface ConverterSize: seen in the pictureMaterial: pvcColor: BlackPacking List: 1pc Guitar Interface ConverterNote:1. Due to the problems of lighting effects and shooting angles, there will be some tolerances in the product, please understand.2. Due to manual measurement, the product has a certain size tolerance.