Yamaha P45 is a digital piano that was first released in July 2014. It is one of Yamaha's entry-level pianos, and it is ideal for beginners and students. The P45 has 88 weighted keys, 10 voices, 64-note polyphony, and a USB MIDI interface. It weighs 25 pounds and measures 53.2 x 11 x 5.9 inches (WxDxH).