Feature 1 Good Sound Quality: Dome tweeters produce crisp, smooth trebles to enhance clarity and detail of music and vocals, has good sound quallity. 2 Function: Built in capacitors attenuate the low frequency range to ensure optimal sound reproduction over a wide frequency range. 3 Premium Material: Car speaker is made of premium metallic iron material, rustproof, high strength, not easy to deform, sturdy and durable. 4 Application: Car tweeters are ideal for 2 way systems, universal for all car audio systems, compact size and maximum power is 140W. 5 Easy Installation: Easy to install, just plug and play, no complicated operation is required, convenient for using, save your time and energy.Item Type: Dome TweeterMaterial: Metallic IronQuantity: 2Maximum Power: 140WImpedance: 4 Frequency Range: 3500Hz-22000HzSensitivity: 89db/w/mScope of Application: Fit for all car audio systems Package List2 x Dome Tweeter2 x Adhesive Tape2 x Screw