Safe materials: 304 stainless steel, food-grade silicone hose, and high-density ABS plastic. Non-toxic and odorless. USB rechargeable battery: 500 mAh capacity. Includes USB charging cable for easy recharging. Practical design means you do not need to charge every day. Easy to use: Insert the pump into the bottle mouth and press the button to dispense water. Suitable for children and the elderly. Note: does not auto-stop; press the button again to turn off. Portable and versatile: Lightweight, easy to install and transport. Ideal for camp, kitchen, workshop, garage, office, hotels, picnics, and outdoor activities. Keeps clean water accessible both indoors and outdoors. High compatibility: Works with pure bottled drinking water and a variety of bottle types and sizes. Simple to operate. Applications: - Office and desk areas to provide convenient access to drinking water. - Camping, picnics, and outdoor events for easy water dispensing from standard bottles. - Home kitchen, workshop, or garage for quick water dispensing without lifting heavier containers.