[. . . ] No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. [. . . ] Such use will also strain the headphones themselves, so please enjoy them at an appropriate volume. When using headphones while on public transportation or in a public place, please be aware of the possibility of annoyance to people around you. Always handle either the headphones themselves or the plug, not the cord. This will help in maintaining the electrical integrity of the cord by preventing any damage to it. When connecting the headphones, always have the volume on the unit you are connecting them to turned down to the minimum. ) Do not expose the unit to direct sunlight, place it near devices that radiate heat, leave it inside an enclosed vehicle, or otherwise subject it to temperature extremes. [. . . ] * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice. [. . . ]