A smart enough: LDS ranging sensor, multi-sensor co-operation, three independent processors B strong enough: specially designed constant current constant voltage charging mechanism, to ensure that the battery in a specific DOD (discharge depth) Ring life up to 2 years or more. Design of the battery pack multi-string protection board, with anti-overcharge, over discharge, overheating / cold, short circuit, overcurrent, secondary overvoltage and other multiple security protection to ensure long life battery pack. C enough peace of mind: a strong wind pressure to bring the strong wind pressure can quickly and effectively suck the dust attached to the ground or carpet, cleaning effect immediately. Through the built-in ranging sensor scan and locate the charging seat, when The room all the cleaning is completed, I will be planned to return to the charging seat charge. D safe enough: I can walk through a variety of narrow space, the whole body with high-strength impact ABS material, wear is not easy to aging. While the bottom and the bottom of the use of matte treatment process, to avoid traces of wear and tear due to collision. Charging seat using fire rating V0 grade plastic material, effectively reducing the security risks. Basic parameters: Host: Product size: 345mm * 345mm * 96mm; Battery: 14.4V / 5200mAh Lithium battery Product weight: about 3.8kg; Wireless connection: Wi-Fi intelligent fast connection; Rated voltage: 14.4V; Rated power: 55W; charger: Dimensions: 230mm * 109mm * 129mm Rated power: 55W - Rated input: 100 - 240V ~ Rated output: 20V- 2.2A Rated frequency: 50 / 60Hz Attention: The vacuum robort can clean floor and carpet, but it cannnot clean carpet and floor in dark color, for example: Black color carpet. Because the vacuum will recognise dark color carpet as cliff, it won't go there for safty reason.