一、性能简介N888U是日本研制生产的优质无线手持对讲机。该机具有体积小、重量轻、造型美观、功能强、耗流小、灵敏度高、操作简单、适用范围广泛等优点，其技术指标符合中国国家无线电管理委员会规定。1．一般指标（1）频率范围：450～469995MHZ：心）频率结构：锁相环方式； First, the performance profile N888U is developed and produced in Japan high-quality wireless handheld walkie-talkie. The machine has the advantages of small size, light weight, beautiful appearance, strong function, low current consumption, high sensitivity, simple operation and wide application range. Its technical indexes conform to the regulations of China State Radio Management Committee. 1. General Specifications (1) Frequency Range: 450 ~ 469995MHZ: Heart) Frequency Structure: Phase-locked loop;