Even if your car doesn't have a genuine tweeter, the separate speaker system adds a tweeter to make the high frequencies clearer.

Ci3 K165.2FM-S3 is a separate speaker that uses the frame of the M165FM-S3 woofer, a 20mm titanium dome diaphragm for the tweeter, and a strong neodymium magnet. Reproduces accurate and dynamic high frequencies. The midrange/woofer uses a newly developed cenosphere coating paper cone. In addition, a magnetic circuit with a high-efficiency magnet
net and a 25mm diameter voice coil is used to achieve sound reproduction with excellent precision.
Compatible with FlexMount100 and FlexConnect, UniversalFlexMount100 adapter and FlexConnect adapter (A type) are included
.

This speaker is for some car models such as electric cars.