The main battery was replaced six months ago. Black Laresar robot vacuum cleaner with a power button and automatic charging function. Accessories included. - Brand: Laresar - Type: Robot Vacuum Cleaner - Color: Black - Features: With automatic charging function - Operation buttons: Power button included Only one side roller on the main unit is broken. Power turns on. Dust collection function also works. Connection with the app is also not a problem. I think it can still be used if repaired. Accessories are unused.