Brand: Xiaomi EraClean Official Exclusive Authorization. EraClean is Xiaomi ecological chain Brand, which is focus on cleaning and purifying. All our EraClean product will offer 1 month warranty for international friends. Feature: Long-lasting battery life and efficient purification: 3000mAh built-in battery, long-lasting use, battery life up to 2.5-12 hours Multiple purification modes: ozone mode, 15 minutes each time, can cycle 8-10 times; negative ion mode, each time 4 hours, can cycle 3 times. Negative ion purification: 5 million negative ions take the initiative, full car coverage and purification, keeping the car healthy and safe, no need to change filter. How to use it? 1. Turn on the negative ion --Click the on/off button on the machine, the buzzer will "ding", white indication light on, the machine will be turned off after 4 hours of operation. 2.Single purification mode -- Long press the on/off button for 2 seconds, the buzzer will sound "ding, ding", red indication light on, the machine will be turned off after 15 minutes of releasing active oxygen. 3. Deep purification mode --Press and hold the on/off button for 5 seconds, the button light will flash 5 times red, at the same time the buzzer will sound once every time the light flashes, the red light is always on, the machine will release 15 minutes of active oxygen and then shut down for 30 minutes to decompose harmful substances, then release 15 minutes of active oxygen and then shut down for 30 minutes to decompose harmful substances. So on and so forth. 4. Stop and start mode --start: click the on/off button on the machine 3 times in a row, the red light will flash 3 times, and the "ding, ding, ding" will sound 3 times. --To cancel the stop-start mode: click the on/off button on the machine 3 times in succession and the buzzer will sound once each time and then the red light will flash 3 times and then the buzzer will sound for 2 seconds to switch off the stop-start mode. 5. Vibration protection function --The factory default vibration protection function is on, for the safety of driving and to prevent misoperation, when the machine vibration is detected, the "single purification mode" and "deep purification mode" will interrupt the work, the machine will shut down, the negative ion function is not affected. Specification: Rated power: 10W Charging voltage: 5VDC Charging current: 1A Ozone generation: 200mg/h : There is fragrance Polymer lithium battery: 3000mAh Endurance: 8-10 times in a smelly year (15 minutes each time), 3 times of negative ions (4 hours each time) Time required to fully charge: about 4.5-5h Stop start: Yes Driving safety function: Yes Working mode: single purification/deep purification/stop start Noise: less than 50dB(A) Main purpose: deodorization, deodorization, removal of formaldehyde, removal of benzene, removal of bacteria Colour: purple Material:ABS+PC Size:79.5x79.5x176.5mm Package Contents:1* purifier,1* charging cable