Qvis 28 inch 4K LED HDMI narrow bezel security monitor with 2 speakers and USB

Features:
· High resolution up to 3840x2160 display
· Ultra-narrow bezel design, elegant appearance 
· 178°H/178°V extra-wide viewing angle for overall viewing performance
· High fidelity digital processing for a brilliant and vivid video
· Support multiple signal interfaces including HDMI 2.0 x2, DP 1.2 x1, USB x1, Speaker x2
· Support freesync, fluent image display
· Low blue light design, eye-protective

Technical Specification
Model
Model LED-4K-28D
Display
Screen Size 28"
Aspect Ratio 16:9
Resolution 3840×2160 (UHD)
Backlight LED
Brightness/Luminance 300 cd/㎡
Contrast 1000:1
Display Colour 1.073B
Viewing Angle(H/V) 178°(H)/178°(V)
Response time(typ.) 5ms
Refresh Rate 60Hz
Signals
Input DP 1.2 ×1, HDMI 2.0 ×2,
Output USB x1 (for charging)
Speaker 2W x2
General
Power Supply AC 100-240V
Freesync Yes
Tilt -5~15°
Consumption (Standard) 40W
Type Internal
Net Weight 7kg
Gross Weight 8.8kg
Wall Mount 75×75mm
Dimension without standard
(W×H×D) 637.88x368.53x57.36mm
Package(W×H×D) TBD
Work Environment
Temperature 0℃~40℃ (32°F~104°F)
Humidity 10%~85%