Welcome to the world of Hytera and thank you for purchasing this product. This manualincludes a description of the functions and step-by-step procedures for use. It also includesa troubleshooting guide. To avoid bodily injury or property loss caused by incorrectoperation, please carefully read the Safety Information Booklet before use.This manual is applicable to the following product:BD55X Digital Portable Radio (X may represent 2, 5, 6 or 8).