国产AV女人久久久精品,黄片视频免费观看带字,一级特黄色录像视频,久久久无码一区二区三区免费

What should be considered before modifying the car audio system? How should safety be valued? Next, let's talk about how to ensure safety in car audio systems with LED Bluetooth speakers.

Firstly, regarding the safety considerations mentioned earlier, it is necessary to consider whether the operation of the product is in a convenient place, whether it is easy to learn and remember, and whether there are special plans for driving safety. For example, some car audio consoles can be equipped with a control lever called safety lever control. The planning principle is to concentrate the main functions of audio control on one control lever, and various operations can be carried out through manual contact, such as controlling wipers, car lights, etc., without distracting the eyes.

Secondly, the listening environment inside the car is very different from home. In addition to the high temperature and vibration mentioned above, there will also be noise coming from all directions, which can disturb the low-frequency band of music. Generally, an extension device is installed to overcome this problem. Should the expansion machine be based on the planning of the entire audio system? Number of speakers, speaker standards, and frequency response? Consider the number of channels and output power. When the output exceeds the output power of the expansion machine, it may cause the expansion machine to burn out. So, is it better to have a higher output power? In fact, the interior space of the car is not as large as at home. There is no need to be superstitious about high-power output, as long as it is sufficient, it can be used. In addition, the higher the output power, the higher the price will also rise.

Article source: LED Bluetooth audio system http://www.iftuetwn.com/