Perfect Moment: This 20M LED string light with USB port is more practical than battery-powered or plug-powered string lights, you can take it and install it wherever you want. The USB port works with all USB devices such as mobile phone chargers, power banks, desktop/laptop computers, etc. Efficient and Safe: This string light with 200 micro-LEDs illuminates the surroundings 360 degrees. An external 10,000 mAh battery (not included) powers this LED string for over 150 hours of use. No overheating, safe for children and pets. Flexible and Soft: This silver wire string light is super bright, made of environmentally friendly material, resistant to breakage and can be easily shaped into any form. Soft lighting is not dazzling. Waterproof IP65: In addition to the USB port, this outdoor/indoor string light with firefly effect is well protected against water jets or spray from all directions. Perfect for any place such as taverns, bedrooms, rooms, garden, office, stage, etc. Wide Application: Warm light creates a comfortable and relaxing atmosphere for you, suitable for restaurant, garden, yard, patio, courtyard, deck, awnings, garden, deck, pergola, bistro, etc.