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This is a small Buzzer, which can be mount on PCB. It has two pins; the bigger pin should be connected to positive supply and shorter one should be connected to ground connection. Operating voltage range is 5-12V. If you provide provide square wave of 5V, it will create a good sound. for a optimum sound quality provide 2-4KHz wave. ..
A speaker(e.g., loudspeakers and tweeters) and associated electronic hardware, such as crossover circuits and, in some cases, power amplifiers, are mounted. Enclosures may range in design from simple, homemade DIY rectangular particleboard boxes to very complex, expensive computer-designed hi-fi cabinets that incorporate composite materials, internal baffles, horns, bass reflex ports and acoustic ..
Speaker Rectangular is an electroacoustic transducer;which converts an electrical audio signal into a corresponding sound.Product type : Speaker Rectangular -5x2.25 Inch- 125X60mm ..
Feature:-Rectangular housing models feature:Appearance that complements TrueAlert strobes and speaker/strobes Red or white housings with “FIRE” lettering for surface or semi-flush wall mount Optional matching adapter skirts for covering surface mounted electrical boxes* Optional red wire guard..