1. Using high-quality materials, the quality is guaranteed
2. Durable and long life
3. Four-speed adjustable high and low, can be used for home audio, or car audio
4. The distribution of high and low frequencies is more precise, and the bass is strong and powerful
5. The sound effect is shocking, the treble is pure, and the sound quality is excellent

Parameter:
1. The factory mode jumper is in high and low enhanced mode
2. The jumper position is not fixed, you can choose any mode according to your needs

Package list:
Finished module*2