Feature 1CLEAR SOUND QUALITY: This is an excellent sound system that provide you with a clear and fine sound experience, with a frequency range of 35Hz25KHz, resistance of 4 ohms, and sensitivity of 91db 2RELIABLE MATERIAL: 6.5in woofer, select excelleny magnet, stainless steel, and rubber material, long lasting and reliable, you can use with confidence 3WITH FREQUENCY DIVIDER: The car speaker set use a split frequency speaker design to evenly distribute sound and present a more wonderful sound quality 4WONDERFUL SOUND EFFECT: Car speaker kit is suitable for all kinds of cars, which is simple to install and easy to use, bring shock sound effect and make driving more enjoyable 5TECHNICAL PARAMETERS: Auto audio system operating voltage is DC12V, rated power for 50W, maximum power is up to 250W, with 2 washers and 2 protect covers Item Type: Car Audio Speaker Kit Material: Magnet, stainless steel, rubber Operating Voltage: DC12V Rated Power: 50W Maximum Power: 250W Frequency Range: 35Hz - 25KHz Impedance: 4Ohm Sensitivity: 91db Woofer Size: Approx. 16.5cm / 6.5in Package List 2 x Tweeters 2 x Woofers 2 x Frequency Divider 2 x Spacers 2 x Protective Covers 1 x User Manual