Features: 3x6inch 4Ω 50W IPX5 waterproof bass speaker, used for home theater. Quality material, anti oxidant, moisture-proof, and long service time. With 80±2dB/W high sensitivity, clear sound directionality. This waterproof subwoofer speaker component delivers clear and no distortions with a total harmonic distortions of just 5% Easily fit into any setsup, providing reliable performances and superior sound quality for all your multimedia applications. Specifications: Material: Rubber Edged Color: black Size: approx. 78.5x147.7mm/3.09x5.81inch Type: 3x6inch Run track type pelvic frame external magnetic horn 4ohms 4Ω 50W Sensitivity: 80±2dB/W Power: 50W Type: Multimedia Speaker Total harmonic distortions: 5% Impedance: 4Ω Working temperature:- 18-60℃ Frequency: 53HZ-2KHZ Package Includes: 1 Piece 4Ω 50W External Speaker note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.