Features: This speaker will be great choice for DIY speakers ! It is suitable for home audiovisual equipment and other speakers Unique design strong external magnetic circuit speakers for excellent performances 4Ohm 3W highly power environmentally friendly speaker 2inch waterproof speaker, enthusiasts level full frequency speaker, powerful and full low-frequency. Specifications: Product Name: External Magnetic Circuit Speakers Material：ABS Impedance:4Ohm Power: 3W Horn Diameter Size:approx 64mm/2.5inch Frequency response 2~20kHz Directional: Bass Sensitivity 85dB/w Quantity:1Set Package Includes: 1Set External Magnetic Circuit Speakers note: Due to light and screen difference, the item color may be slightly different from the pictures. Please allow 0.5-2cm differences- due to manual measurement.