Mi Wireless Vacuum Cleaner G11 is equipped with the latest high-efficiency brushless DC motor, which can provide higher speed operation and longer service life. The suction power is up to 185 AW, which is 23% higher than the previous generation, and the cleaning effect is more powerful.The fully upgraded lithium-ion polymer battery is safer, more stable, and lasts longer so you don't have to recharge it all the time.The vacuum cleaner not only uses a large-capacity battery, but also supports quick battery replacement. When the battery runs out, use the replaceable battery to extend cleaning time instantly without waiting.