Power mode: USB. Noise: below 36dB. Colors: transparent white, transparent blue, brown black white, brown black blue. Appearance: round. Operation mode: mechanical. Applicable area: less than 10 square meters. Function: Ultrasonic. Number of mist outlets: 1. Applicable object: vehicle. Timing function: 2-8 hours. Water tank capacity: below 1 liter. Water shortage protection: support.