Yamaha PAC 76-Key Lightweight Portable Keyboard, White (power adapter sold separately) - NP32WH 76-Key Graded Soft Touch (GST) keyboard action provides gentle weighting, whilst retaining the soft touch of a digital keyboard Advanced Wave Memory Stereo Sampling recreates natural instrument sound in stereo The controller App for iOS adds a rich, graphic user interface allowing for quick and easy navigation and configuration The USB to Host port allows you to connect and interact with a wide variety of educational and musical creation Apps on a computer or mobile device Additional upgrades include 64-note polyphony, a song recorder function, and extended battery life