Rechargeable and environmentally friendly battery operated fairy lights: Say goodbye to disposable batteries. This LED string light comes with a built-in rechargeable 120mAh battery (full charge in 20 minutes) and provides a more environmentally friendly, cost-saving solution. One charge corresponds to up to 300 disposable battery cycles and saves time, money and the environment. [Long-lasting Lighting - Up to 14 Hours Per Charge] Enjoy extended brightness with 12-14 hours of continuous lighting on a full charge. Easily charge via any USB port, power bank or laptop - perfect for parties, events or ambient lighting without interruptions. [Flexible, Safe and Durable Silver Copper Wire Design] Made of high quality silver plated copper wire, these fairy lights are soft, bendable and safe to touch. The 3V insulated low voltage line stays cool even after hours of use - ideal for families, children and pet-friendly environments. [Waterproof LED Wire - Indoor & Outdoor Ready] Designed for Versatile Use: IP65 waterproof string lights are ideal for indoor and outdoor decoration. (Note: the battery case is not waterproof.) LIGHTWEIGHT & PORTABLE - Add sparkle anywhere from mason jars to garden patios. [PERFECT FOR ANY OCCASION - From cosy nights to big celebrations] Whether for wedding decorations, romantic dinners, Christmas, Halloween, or crafts - these sparkling lights will add magic to any room. Ideal for bedrooms, tables, balconies or festive events and also a charming gift idea!