It’s very similar to the real thing. But the original price is about 500 yuan. There are obvious differences between the real thing and the high-end imitation: 1. The real thing has excellent workmanship and is very soft. The rubber skin is very soft. The earphones The cover has no gaps, the sound quality is good, and the volume keys and skip keys are all touch-sensitive. 2. The workmanship of high-quality imitation goods is extremely poor, very hard, and the rubber skin is also hard. The earphone cover has a large gap. The sound quality is not good, harsh, and the bass is insufficient. Moreover, the volume keys and skip keys are mechanical and not touch-sensitive. There is a clicking sound. The original S9 communication distance should be about 10 meters.
Also, what is the SYN number? Please give me some knowledge