Date：2019/04/20Type：Evaluation 

1. Wear a Bluetooth headset to talk to the phone while doing other things.

2. The electromagnetic wave of the Bluetooth headset is much lower than that of the mobile phone. When you talk on the phone, just put the mobile phone in a briefcase or a pocket, put on the earphone and talk easily, neither need to raise your hand, but also effectively reduce electromagnetic waves to the human body. influences;

3. "Bluetooth" technology replaces the application of infrared technology in PC and mobile communication products with the advantages of low cost, low power consumption, short distance and high frequency (frequency hopping technology).