UHD 4K display with resolution of 3840 ? 2160 Anti-glare and anti-blocking design to ensure smooth interaction Dual systems of Windows and Android saving cost and easy to use Quick response, at most 20-point touch control and smooth writing experience Default startup signal source setting and preview, external signal source switching, and scheduled startup/shutdown Local and USB files auto classified management, and quick search or manage office, audio, video, or picture files Dual USB 3.0 interfaces, and data from any interface can be read in Windows and Android system at the same time Enable the floating ball by gesture to realize writing, erasing, screenshoting and freezing in any channel Mirroring by mobile phone or tablet to realize remote control and flexible teaching Teaching software integrating kinds of tools and materials, convenient writing, erasing, recording, preparing and teaching Scan the QR code to save the teaching notes All-in-one design with tempered glass and intelligent temperature control, making it environmental-friendly and safety-guaranteed

Annotate and Collaborate Everywhere with the Cloud Smooth Real-Time Collaboration Instant Access to the Cloud The Smart Broadcasting System with Instant Delivery and Easy Management Twice the Touch Resolution Hands free control over the IFP with Voice Assistant Smart Eye-Care Solution (Flicker Free, Low Blue Light, Anti-Glare) Germ-Resistant Screen Front-Facing Speakers and External Microphone Compatibility for More Impactful Learning.

Annotate and Collaborate Everywhere with the Cloud Smooth Real-Time Collaboration Instant Access to the Cloud The Smart Broadcasting System with Instant Delivery and Easy Management Twice the Touch Resolution Hands free control over the IFP with Voice Assistant Smart Eye-Care Solution (Flicker Free, Low Blue Light, Anti-Glare) Germ-Resistant Screen Front-Facing Speakers and External Microphone Compatibility for More Impactful Learning.

Annotate and Collaborate Everywhere with the Cloud ?Smooth Real-Time Collaboration ?Instant Access to the Cloud ?Flexible Anytime Annotation ?Immediate Message Delivery and Management ?NFC Enabled ?Twice the Touch Resolution ?Air-Quality Sensor ?Germ-Resistant Screen ?Smart Eye-Care Solution ?TUV Test Confirmed ?Nurture Uninterrupted Learning with BenQ Launcher ?Account Management System for Personalized Workspace ?Wireless Solution for Seamless Collaboration ?Hands free control over the IFP with Voice Assistant ?Front-Facing Speakers and External Microphone Compatibility for More Impactful Learning

HP V220 21.5-inch Monitor ? Display size (diagonal) 21.5" ? Resolution (native) FHD (1920 x 1080 @ 60 Hz) ? Response time 5 ms on/off ? Aspect Ratio 16:9

HP P19V G4 Monitor comes with 18.5? WXGA (1366x 768)TN HD Display, Display area (metric) 409.8 x 230.4 mm, Aspect ratio 16:9, -5 to +20? Tilt, Pixel pitch 0.3 mm, Brightness 200 nits, Contrast ratio 600:1, Response time 5ms on/off Display scan frequency (horizontal) 30-80 KHz and Display scan frequency (vertical) 50-60 Hz.

Screen size:24-inch (diagonal)||- Panel type: TN with WLED backlight.||- Native resolution: 1920 x 1080.||- Dynamic contrast ratio: 10,000,000:1. ||- Brightness: 250 nits.||- Response time: 5 milliseconds.||- Viewing angles: 170? horizontal, 160? vertical.||- Tilt: -4? to + 22? vertical.||- Input connectors: HDMI, DVI-D, VGA.||- Dimensions (w x h x d): 22.26 x 16.22 x 7.99 inch.|||- Warranty: Protected by an HP standard 1-year limited warranty. Certain restrictions and exclusions apply.

Display Type : LED-backlit LCD monitor / TFT active matrix||Diagonal Size: 24" | Viewable Size: 24"||Aspect Ratio: Widescreen - 16:10||Native Resolution: 1920 x 1200 at 60 Hz | Color Support: 16.7 million colors | Contrast Ratio: 1000:1 / 5000000:1 (dynamic)||Horizontal Viewing Angle: 178 | Vertical Viewing Angle: 178

Series S2421HN Colour GREY Item Height 41.2 Centimeters Item Width 5.4 Centimeters Standing screen display size 24 Inches Screen Resolution 1920 x 1080 Resolution 1920 x 1080 Product Dimensions 53.7 x 5.4 x 41.2 cm; 5.88 Kilograms Batteries 1 Lithium Polymer batteries required. (included) Item model number S2421HN Number of HDMI Ports 2 Voltage 240 Volts Wattage 21 Watts Are Batteries Included Yes Lithium Battery Energy Content 4.9 Watt Hours Lithium Battery Weight 0.85 Grams Included Components Monitor panel, Stand riser, Stand base, Power cable, HDMI cable, VESA cover, Quick setup guide, Safety / Environmental / Regulatory Information Manufacturer Dell Computers.

Device Type: LED-backlit LCD monitor - 21.5" Aspect Ratio:16:09 Native Resolution : Full HD (1080p) 1920 x 1080 at 60 Hz Brightness : 250 cd/m? Response Time : 12 ms (grey-to-grey typical); 8 ms (grey-to-grey fast) Input Connectors: HDMI, VGA Display Position Adjustments: Tilt Screen Coating: Anti-glare 3H hardness Voltage: AC 100-240 V (50/60 Hz) Display Type : LED-backlit LCD monitor / TFT active matrix Horizontal/Vertical Viewing Angle: 178 Backlight Technology: LED backlight Interfaces: HDMI (HDCP 1.4), VGA Cables Included :1 x HDMI cable Input Voltage : AC 100-240 V (50/60 Hz) Power Consumption (On Mode) : 14.1 W Dimensions & Weight Details : With stand - width: 50.43 cm - depth: 17.88 cm - height: 38.41 cm - weight: 2.67 kg. Without stand : Width: 50.43 cm - depth: 4.92 cm - height: 29.54 cm - Weight : 2.34 kg Item Weight: 2.67 kg Shipping Weight: 4.4 kg Warranty: 3 Year