Mini Wireless Earphone Neckband Silicone Holder Earbuds Custom Brands. Customizable Color: Color is fully customizable to meet specific brand requirements. OEM Thickness: Thickness can be customized via OEM service to fit design needs. High Hardness Range: Hardness adjustable from 10 to 90 Shore a for various applications. Premium Silicone Material: Made from 100% pure silicone ensuring safety and durability. Wide Temperature Resistance: Operates reliably in temperatures ranging from -40 to 240 degrees Celsius. Global Export Standard: Meets export standards for UK, Japan, Australia, Germany, and South America. Comprehensive Certifications: Certified with CE, LFGB, and FDA for international safety compliance. High Production Capacity: Supply capacity of 4,000,000 pieces per week ensures timely delivery.