"Explores how and why hearing devices were developed, how the technology works today, and how the technology will be advanced in the future"-- Provided by publisher.
Item Details
ISBN:
9781641858359
1641858354
Description: 32 pages : color illustrations ; 24 cm.
Target Audience Note: Grades 4 to 6.
Notes: Includes bibliographical references (page 32) and index.
