Check the listing for details. 2-High Frequency Sound Reinforcement Piezo Tweeters 75W RMS 150W Max. Color: Black, Condition: New. Listed at 11.99 USD. Sound Reinforcement Tweeter Overview: Very commonly used tweeter in musical instrument, sound reinforcement and DJ speaker systems, use in two way or three way speaker cabinets. It is also popular for use in carpeted automotive speaker boxes. Piezoelectric design offers excellent transient response, high efficiency, high power handling and very high immunity to burnout. Very high impedance at low frequencies eliminates the need for a crossover, making this a very inexpensive and reliable tweeter to incorporate into any speaker system. It is perfect for direct incorporation into multi tweeter arrangements. Specs:Color: Black Speaker Shape: Square Power capacity: 75W/150W RMS/max Frequency response: 2KHz~20KHz Dimensions: 3.4" x 3.4" Mounting Depth: 3" SPL(Sound Pressure Level) 91db(W/M) Required Opening: 3-1/8" Diameter Fast And Free Shipping From Fla, USA!