1. UNIQUE DESIGN 2. COMPETITIVE PRICE 3. FAST DELIVERY TIME 4. GOOD AFTER-SALE SERVICE. 4″ pro audio Speaker2- Way Rubber edge injection woofer cone30mm PEI tweeter80- 20000Hz, 86dB/w/m60W/ 4Ω, Φ19mm ASVMagnet: (8 Oz)MAX power: 300W PRO AUDIO SPEAKER, CAR SPEAKER,PROFESSIONAL SPEAKER