re extra mops, please clik below picture of mop.         Features:   - Smart cleaning robot can simplify the housework and free your hands, convenient for daily use - Artificial wiping design with high speed and strong torque characteristics, makes the wipe cleaner - Multiple control system for easy operation: mobile APP control, wireless remote control and one key to start - 8.5cm ultra-thin body design with exquisite workmanship, much more attractive - Brushless motor has high speed and long service life, ensures that the suction at the same time reduce the noise - Intelligent path planning, the coverage reached 99 percent - A variety of security guarantees, such as UPS power system, not afraid of falling, safe to use even if the power is off accidentally - Suitable for flat glass, wall, tabletop, floor, ceramic tile, marble, door, etc. Parameter: Material: ABS Rated voltage: 24V Power: 75W Charger input: AC 100 - 240V 50/60Hz 2A Charger output: 24V 2.5A Noise: 65dB Battery: 650mAh built-in lithium-ion battery Brushless motor service life: up to 30000 - 50000 hours Charging time: about 1 hour Working time: less than 2 hours                  Specification              Model number      RB188              Dimension      250(L)*250(W)*90(H) mm              Packaging size      350(L)*350(W)*155(H) mm              Net weight      1.35 KG              Gross weight      2.95 KG              Loading (20GP/40GP)      1500/3300 PCS              Battery capacity      650 mAh              Power consumption      75W              Adaptor input      100~240VAC,50Hz/60Hz              Adaptor output      24V/3.75A              Noise      65 dB              IML technology      adopted              AC power cord      1.0 M              DC extention cable      4.0 M              Safe rope length      4.0 M              Battery life      2 Years              Working speed      about 2.5min/sqm              Charging time      1 hour              Working pattern      Auto cleaning/wireless APP/remote control cleaning              Working environment      frame/frameless              App name      WinCleaner/OEM              APP support version      iOS 7.0 or later, Android 4.3 or later, Bluetooth 4.