Practical combination: you receive 1 mini portable humidifier, 1 piece USB cable; In addition, we provide 1 short replacement cotton wicks and 1 pieces long replacement cotton wicks , enough to last for a while; Notice: it is recommended to replace the cotton core every 2 months; Soak the cotton core well before use and please use purified water instead of tap water Adjustable length: the length of this cool mist humidifier is adjustable, so you can combine with different sizes containers to use; Compact in size and light in weight, convenient to carry with you anywhere and easy to store Without water bottle: with this USB air humidifier, you don't need to tolerate the dry air anymore; Brief design with no water tank, just simply place the humidifier in any water cup or mineral water bottle, then you can enjoy the humid air and breath more comfortably Using introduction: our mini mist humidifier has 2 modes, one-key start, continuous mode, and another to adjust to intermittent mode; At the same time, there is a timing function, which automatically close after 8 hours, so you don't need to worry about the humidifier being destroyed in the absence of water, safe to use USB charging: our humidifier does not have power storage function, but your USB interface allows it to be applied anytime and anywhere; You can plug the charging cable into a portable power supply, laptop or socket, please use purified water<br><br>Material:ABS colour:White<br><br>Package Contents: 1 x Humidifier 1 x USB cable 2 x Cotton swab<br><br>Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.