Features: Specifically designed for portable recorders and micro devices, this demagnetizing head efficiently removes magnetic noise, preserving o quality and extending the life of your recording equipment. With internal micro permanent magnet or weak magnetic field, it provides high-efficiency demagnetization without requiring a power supply. Ideal for professional sound engineers, music enthusiasts, recording equipment maintenance personnel, and related technicians, enhancing their o experiences. Perfect for recording studios, home recording environments, radio stations, and music production studios, ensuring optimal performance across various settings. This accessory is compatible with a wide range of recording devices, making it an essential tool for achieving high-fidelity sound in both professional and personal o setups. Specifications: Size: about 20x18x8mm / 0.79x0.71x0.31in Component: ABS Quantity: 5/10PCS Package Includes: 5/10PCS Erase Magnetic Head Note: There might be slight color variations due to different computer screen resolutions. There might be 1-2cm size errors due to manual measurement.