Some friends always like to watch videos with their phone speakers turned on, but the iPhone is such a small speaker that even when it is turned on at the maximum, there is only a small volume. Now it's time to introduce Huaqiang North artifact. Today, I want to introduce an iPhone speaker base, which can not only serve as a base for the iPhone, but also expand the volume of the iPhone.

Of course, there must be a big speaker at the bottom of the iPhone speaker base, and the volume of the iPhone is also expanded through the speaker.

The right side of the speaker is the slot of the iPhone. We can see that there are two holes in the slot. The left hole is reserved for the iPhone microphone, and the right hole can guide the sound of the iPhone speaker to the speaker to increase the volume through physical reaction.

Now let's test the effect of the iPhone speaker base. The test is like this: use the iPhone to play a constant volume sound, and use the microphone to record the effect before and after adding the base.

In the following figure, the left is the sound waveform before adding the base, and the right is the waveform after adding the base. Because there will be some noise when putting down and picking up, only the middle part of the waveform will be used for comparison when the contrast volume is high. From the figure, we can clearly see that the waveform on the right is obviously higher than that on the left, and the effect of the iPhone speaker base is still very obvious. (The higher the waveform, the higher the volume)

In addition, we also recorded a video, through which you can listen to the effect of the iPhone base.

At present, the price of this product in Huaqiangbei is 6 yuan, and friends who like it can buy it in Huaqiangbei.