Feature: 1. The sound is also louder and high frequency can be improved, provide you more convenience. 2. This perfect treble sounds more comfortable, the vocals are sweet, help you enjoy the music. 3. The addition of capacitors is not afraid of being burned out, you can use the premium mini tweeter at ease. 4. Installed inside the shelf, can be fixed and installed in the eye, and the tweeter is adjusted at 30 degrees inside. 5. The 360‑degree non‑directional adjustment makes the sound positioning beautiful. Specification: Item Type: Mini Tweeter Material: ABS Colour: Black Frequency Response: 5KHz-20KHz Impedance: 4Ω (can be connected to 4Ω and 8Ω) Installation: use 63V elco Promise, elco4.7 uF for high and low sounds, elco3, 3uF for mid and low sounds Application: Suitable for buses, mid-sized buses, medium and large trucks, for car audio, LCD TV, walkie-talkie, monitoring system and other vehicles that use 24V power supply. Package List: 2 x Mini Tweeter 2 x Paper Pad