Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: BenQ EW2440L 24-Inch Screen LED-Lit Monitor
Product description: Enjoy a cinema-class picture in the comfort of your own personal space. View larger Designed for Cloud Content from Your Roku, Smartphone, or Other Devices, With a sophisticated all-around slim design and equipped with the latest MHL connection, the all-new BenQ EW40 Series of monitors take your Netflix, MLB.tv, Hulu, or other content to a new level. With its beautiful slim bezel and elegant lines, the monitor can operate as your primary display in nearly any space for either home entertainment or office work., Designed specifically for your smart device, the new EW40 Series features both HDMI and MHL connections to deliver HD picture quality as well as flawless streaming from any MHL-equipped smart device. The monitor will enable you to enlarge and optimize any content displayed on your smart device effortlessly. With this feature, you can browse websites, watch videos, play games, and even go over various documents on a full size screen without having to turn on your computer at all., With monitors purpose-built for critical functions for gamers, graphic designers, photographers, artists, creative and business professionals, BenQ balances aesthetic appeal with peak performance and comfort. In the EW Series, RevolutionEyes technology includes ZeroFlicker, Low Blue Light mode, and an intuitive UI with comfortable extended viewing. BenQ is revolutionizing the monitor industry with improved resolutions, faster response time and quicker refresh rates. With sleekly designed monitors to complement today's trendiest home and office environments, BenQ is leading the way with purpose-built solutions that deliver incredible value and the very best user experience., Enabled by BenQ's exclusive color engine technology, the Cinema Mode automatically processes and fine-tunes video contents to perfection, so that a truly dynamic cinema experience is what you'll get., To give you an optimal online video watching experience, the EW40 Series simulates high-resolution images by boosting the pixel density of the original video source with the Super Resolution image enhancement feature., Smart Focus allows you to pinpoint a window or area on the screen and make that the focal point. By concealing the rest of the visual content, you're able to focus on exactly what you aim to enjoy., The flicker-free technology eliminates flickering at all brightness levels and effectively reducing eye fatigue. Conventional LCD screens flicks 200 times per second. Your eyes may not see flickers, but can certainly feel them. Free your eyes from flickers by switching to flicker-free monitors and let your eyes do less work., Every monitor produces a strain of blue spectrum light that is one of the critical causes of eye damage, eye strain, headaches and sleeping disorders. BenQ's unique Low Blue Light technology is designed to deal with the everyday problem of blue light exposure and allows a healthier time spent in front of your computer. Switch to one of the four preset Low Blue Light Modes from OSD hot key (Multimedia – 30% reduction; Web-surfing – 50% reduction; Office – 60% reduction; Reading – 70% reduction), and reward your eyes without having to lose the visual enjoyment., The EW Series have passed Windows 8 certification and is fully compatible with Windows 8 color systems. Plug in the EW Series Monitor to your computer, and Windows 8 will recognize it instantly, making setup and connection effortless.
Product feature: MHL Connectivity (shared with HDMI), Zero Flicker, Low Blue Light, Ultra high contrast ratio of 3000:1, 24" 1080p
Product brand: BenQ
Target attributes: Maximum Refresh Rate
Answer: attribute: maximum refresh rate
value: None
source: None