Description: brand new and high quality. Feature: Mad of high-quality ABS material, durable, firm and stable for us to use. Handles extreme heat and maintain its structural integrity for long life out of your speakers. Protects the voice coil and provide the optimal sound each and every for time. Dual Piezoelectric Speaker: coal, speakers, KTV, stage, horn speaker, piezo tweeter horn speaker, piezo design, sound harsh, very suitable for coal, a bird catcher, also suitable for small KTV stage sound. Piezoelectric Tweeter only, other accessories demo in the picture is not included. Specifications: Item Type: Piezoelectric Tweeter Frequency: 4.5-20KHz Sensitivity: 105DB Maximum Power: 150W Material: ABS Panel Size: 160x94mm/6.2x3.7in Piezoelectric for Head Size: 102x53mm/4.01x2.08in Diagonal Hole Distance: 142x79mm/5.5x3.1in Construction Hole: 25x55mm/0.9x2.1in Color: Black Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Piezoelectric Tweeter