jayuk232 
Roborock Technology Co. Ltd via Amazon has Roborock S4 Robot Vacuum for $300.29 after promotional code ROCK4NEWY. Shipping is free
- A high-precision laser navigation system scans your room at 300RPM, creating a real-time map of your home that is accurate to up to +/- 2cm.
- Comprehensive Roborock app control, including map saving, selective cleaning, no-go zones, and power setting, give you total control of S4 no matter where you are.
- Intense 2000pa Suction, enough to lift AA batteries, easily picks dust off floors and can even drag trapped dirt from deep inside low-pile carpets. Do not suggest to use it on high-pile carpets.
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