Food Grade Silicone Material: Made of food grade silicone, healthy and safe, you can use it with confidence. The water cup with 700ml capacity. Multi-function: The luminous water bottle is not only a cup of water, but also has a night light function to meet various outdoor needs. Charging method: Solar and USB dual charging methods, whether outdoors or at home, you can easily charge the water cup light. Emergency Charging: The water cup light also has an output function, which can temporarily charge mobile devices such as cellphones in an emergency. 5 lighting modes: low light, high light, slow flash, fast flash, breathing 5 lighting modes to meet your different lighting needs. How to use: 1. Solar charging, USB charging. 2. Press the switch to turn on, click to change the light mode. 3. Capacity of the water cup 700 ml. Specification: Item Type: Solar Rechargeable Water Bottle Light Product size: Height: approx. 18cm / 7.1inch Diameter: approx. 7.3cm / 2.9inch Built-in battery: 14500 2000mAh lithium battery (included) Light source: white light Mode: Low Light, High Light, Slow Flash, Fast Flash, Breathing Charging method: Solar, USB 5V Cup capacity: 700ml Material: Silicon Color: Blue Weight: approx. 282g / 9.9oz List of packages: 1 x luminous mug 1 USB cable