In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. STOP!!! THE KEYBOARD YOU ARE BUYING DOES NOT HAVE AN AC POWER ADAPTOR INCLUDED IN THE BOX. This survival kit comes complete with an AC power adaptor, lightweight headphones, and a 2-year extended warranty (standard warranty is 90 days). Bonus!, also includes a Yamaha CD-ROM containing instructions to connect your Yamaha keyboard to your computer, owners manuals, and a variety of software that teaches you to play and use your new keyboard!