Product Description Two 500W mini high-efficiency car tweeters, car speaker stereo speakers, suitable for car audio systems. High-efficiency dome tweeter units. Louder volume, lower power consumption. Easy installation, can be installed in any location. No magnetic field, safe to hold tape and credit cards. Built-in crossover. Suitable for all car audio systems. Rated Power: 10W Voltage: 12V Maximum Audio Power: 500W Audio Response: 5kHz-20kHz Impedance: 4Ω Sensitivity: 91dB Signal-to-Noise Ratio: 86dB Magnetic Circuit Type: Coil Material: Plastic Color: Black Package Contents: 2 x Car Tweeters Includes only the above package contents, other products are not included. Note: Light and different monitors may cause the color of the item in the picture to be slightly different from the actual product. The allowable measurement error range is +/- 1-3 cm.