This is an original Bose Lifestyle Powered Speaker System Service Manual. It has been carefully preserved and is in excellent working condition. The manual contains all the necessary information that you need to operate and maintain the speaker system. The brand of this manual is Bose, a well-known and reputable brand in the audio industry. This manual is perfect for anyone who is looking for a vintage manual, vintage parts and accessories, vintage audio and video, vintage electronics or consumer electronics. With this manual, you can be sure that you have all the information you need to enjoy your speaker system for many years to come.