From the Manufacturer:

• Enhanced Productivity:  Kwumsy S3 laptop screen extender is a versatile, plug-and-play, dual-screen extender that swiftly transforms your workspace.  Boost your efficiency by up to 50% with multi-screen simultaneous display and differential display options, enabling efficient multitasking without compromising on space. 
• Effortless & Portable:  The Kwumsy S3 triple portable monitor for laptop is a hassle-free companion that easily connects to your laptop without additional accessories.  It supports laptop screens up to 14.5 inches in width and includes an adjustable stand for stability.  Weighing only 4.74 pounds, this ultra-portable, slim extender easily fits into the provided bag, making it perfect for travel. 
• Seamless Connectivity:  This laptop screen extender is a plug-and-play device compatible with Windows, Mac OS, and Linux—no drivers needed. Offering multiple cable options, including USB-C to USB-C/USB-C to USB-A and USB-C to HDMI (for video signals), it's compatible with laptops supporting dual video signal outputs (not compatible with Mac M1/M2 chips). 
• Premium Display & Flexibility: Enjoy the dual 14'' 1080P FHD IPS full view screens with a brightness of 300 nits, delivering exceptional display quality. Both screens can be rotated 180 degrees forward for customization viewing angles.  With multiple display modes such as mirror/extend, experience enhanced flexibility in usage. 
• Dedicated Support: Rest assured in our rigorous quality control.  We offer exceptional pre-sales and after-sales service to address all your queries and concerns. For compatibility assurance, reach out to our support team.  Please note:  Kwumsy S3 isn't compatible with 2020 M1 and 2022 M2 chip MacBooks for dual-screen functionality; it supports only one screen due to single video signal output.  If your laptop can't support dual extended screens, please check with us and we could assist to solve.