LED Lighting: Equipped with 10 different LED light modes, including colored streams, neon flashes, comet-tail sweeps, and six single-color settings, it adds a fun and touch to your hydration experience. Battery: Powered by a 150 mAh lithium polymer battery, it provides approximately 4 hours of continuous use. It can be recharged magnetically via USB for convenient and environmentally friendly operation. Material: High-quality ABS material with a glow-in-the-dark LED light, perfectly enhancing the look and functionality of your water bottle. Dimensions: The product measures 5.5 x 2.5 x 13 cm, with a hole spacing of 11.5 cm, allowing it to seamlessly fit 30-ounce and 40-ounce for water bottles.