Ultra-Slim 4000mAh Credit Card Mini Power Bank Promotion Gift

Ultra-Slim 4000mAh Credit Card Mini Power Bank Promotion Gift. Ultra-Slim Credit Card Design: Dimensions 117x68x9mm, portable and fits easily in wallets. Integrated Cables: Built-in Micro USB cable for direct charging without extra cords. Universal Compatibility: Works with all mobile phones, cameras, and other USB devices. Multi-Protection Safety: Includes short circuit, overcharge, over-discharge, and temperature protection. Durable Battery Life: Li-Polymer battery with over 1000 charge cycles. One-Year Warranty: Comprehensive 1-year guarantee against manufacturing defects. OEM/ODM Services: Professional one-step customization services available for brands. Global Certifications: Certified with CE, FCC, and RoHS for international safety standards.