Features: Engineered with 4Ω impedance and optional 3W/5W power output, this 52mm external magnets speaker delivers crisps, powerful sound performances for bluetooth-compatible speaker parts and DIY sound projects. Featuring external magnets and precisions PU diaphragm, it ensures reduced distortions, enhanceds bass response, and integration into portable sound devices. for sound enthusiasts, DIY hobbyists, and manufacturers speaker components for bluetooth-compatible speakers or sound systems. Optimized for home sound setups, car stereos upgrades, and outdoor portable speakers where space efficient, high performances bass enhancement matters most. Its plastic metal hybrids construction withstands rigorous use while maintaining consistent acoustics claritys across diverse environment, making for bass drivens sound. Specifications: Materials: Plastic + Metal Diameter: 64mm Style: 3W, 5W Package Includes: 1Pair External magnets 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.