Large capacity - The mini cute cat doll face humidifier has a 40ml large capacity water tank which can be applied about 20 to 22 times, no need to add water frequently, when there is enough water, it can be applied for 20 minutes without interruption. 2 in 1 Function - It is as nano mister and also as a 120db emergency safety alarm. press button to turn up the emergency siren when you are in danger, use alerts to attract attention and seek help. battery capacity is 500mAh, the alarm can be sound up and maintained for 100 minutes. Perfect as gift for teen girls and young kids. 0.3um Fine Mist - Ultrasonic vibration technique decomposes the moisture to 0.3um. Much finer mist can be absorbed instantly, moisturizes your skin deeply, wont ruin your makeup, and helps the eyelash extension adhesive cure faster. Easy to carry - our product is small in size and easy to carry, this USB handy skin care machine can bring you convenience whether you are going shopping, traveling or on business trips, it will make you feel relaxed and cool in the hot summer and keep the skin hydrated in winter. After Service - Our product have been well tested, Examined and package before sending off, Please just feel free to contact us if you have any problem for the products or the service,We will do the best to give you a satisfactory solution.