Yamaha Wireless USB to Host MIDI Adapter Wirelessly connect your iOS devices (iPhone/iPad/iPod touch) to your instrument Use music apps without cables and enjoy the freedom that wireless technology brings to your performances Simple and easy wireless connection of instruments with a USB TO HOST terminal to iOS devices and Mac Avoid having to reconnect every time you play Charge your iOS devices (iPhone/iPad/iPod touch) while using apps and not worry about the battery running out