| Features: Made of high quality metal material, loud volume, excellent sound quality, no sand. Features high water resistance and improved sound clarity for home audiovisual equipment and other speakers. It can replace your sound system with high sensitivity, loud sound and clear sound quality. Widely used in all kinds of music boxes, doorbells, alarm clocks, digital products, small appliances, building security, advertising machines, access control machines, voice recognition of credit card machines, etc. Specification: Material: Iron Size: diameter 1.57in/4cm Impedance: 8 ohms Power: 2 watts Color: as pictured Uses: audio, reading pen, learning machine, walkie-talkie, earphone, projector, | |