Features: Universal car speaker with water resistant and builts in adhesive for instants installation, for CB radios, vehicle intercoms, and bank communication systems. Features 4Ω impedance matching and 12W rateds power for direct integration with car radio setups, housed in ABS construction that passed 72 hour salt sprays testing. for truck driver, security personnel, and outdoor enthusiasts requiring sound reinforcement mobile communication. Perfect for enhancing voice claritys in vehicle cabins, bank counters, or industrial sites where adhesive mounted sound. Engineered with aluminum alloy housing for corrosion resistance, this multiple application speaker delivers distortions sound without external amplifiers. Specifications: Product name: Waterproof speaker Impedance: 4Q Power: 12W Line length: 1.9meters Insert diameter: 3.5mm Speaker diameter: 60mm diagonals hole distance: 72mm Package Includes: 1PC Car Full Frequency Small Speaker note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.