The FIIO SK-M21 Leather Case is a custom-designed protective case for the M21, crafted with eco-friendly PU leather. This high-quality case features a soft and durable texture, offering excellent protection while maintaining an elegant look. The case is designed with a precise fit for the M21, ensuring easy access to all buttons and ports. Available in two stylish colours—blue and brown—the case combines vibrant and classic styles to complement your M21. The embedded tongue design not only enhances the aesthetic appeal but also provides additional security, preventing accidental slips and ensuring the device stays securely in place. The inner steel ring support adds stability and shape retention, while the heat-sealed raised button areas provide accurate and responsive button feedback for a comfortable user experience.