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Shenzhen Rui Yi Heng Technology Co., Ltd Our company is a professional company integrating R&D, design, production, and marketing Our company is a legitimate supplier of "Power Banks," "USB Flash Drives," "Wireless Chargers," and "Hand Warmers." Honesty Operates Wholesale Dealers Nationwide Only provide customers with high-quality and cost-effective products We sincerely welcome overseas clients and merchants to inquire and discuss distribution and agency cooperation Welcome companies such as trade, gifts, and brands to come and purchase Custom gifts, quality assurance, bulk discounts Buyer's Guide for Enduring Company Corporate Advertising Gift Power Bank The product defaults to being neutral without a , but the can be customized according to customer requirements. Customization options include laser engraving/laser , color, single-color silk screen printing, two-color or multi-color silk screen printing Different printing methods result in different prices. Free design and proofing for large quantities, sample drawings available on the same day, payment only if satisfied. The actual capacity can be customized according to customer requirements; different capacities have different prices. Our store has joined the consumer protection plan, and products sold are guaranteed to be replaced within 15 days if not damaged by humans. Any quality issues will be directly replaced with new products, with a one-year warranty.All products sold provide customers with excellent quality assurance.