SK-NBB75

Description:

1. The ability to write with various types of pens and protection against water and explosions: You can write, erase, and clean the writing directly with chalk, water-based pens, and dust-free chalk. It has automatic sensing and recognition technology and features nano-tempered glass that is explosion-proof, scratch-resistant, and impact-resistant. It has an Android and Windows dual operating system and supports writing on any channel with annotation functions;

2. Combining audio and visual elements for intelligent teaching: It supports various multimedia teaching software such as videos, music, pictures, PPT, and more. It has a Windows operating system and supports a massive number of teaching software that can be easily downloaded. The interface is traditional and easy to understand;

3. Blue-light protection technology for eye protection: It adopts anti-glare AG tempered glass to effectively reduce light reflection. The blue-light filtering technology is highly effective in protecting the eyes of both teachers and students;

4.Full-fit anti-glare technology: It adopts a full-fit solution of the LCD display screen and capacitive film, featuring an ultra-wide viewing angle, high light transmission, high contrast ratio, and clear display, making reading easy and comfortable. The zero-distance display reduces visual deviation, and the zero-distance touch feeling enables precise and smooth writing;

5. Intelligent gesture recognition: With one-key black screen, you can easily switch between touch and writing modes, and it supports full-screen writing without any barriers;

6. Integrated touch and display technology for multi-user interaction: The 20-point advanced capacitive intelligent touch technology can support multiple users' interaction simultaneously. It has a full HD LED screen with clear pictures and outstanding details, and it comes with a control OPS host, wireless internet, and USB storage.

7. Built-in video platform: 8-megapixel autofocus camera and diffuser LED fill light for perfect reproduction of A4-format content(SK-NBB7502).
8. Camera array microphone: 8-megapixel, high-resolution eight-array microphone camera for truer colors; highly qualified remote video(SK-NBB7503).

Technical Parameters:

Overall size: 4200 mm*1200 mm * 53.8 mm

Combination mode: Splicing blackboard

Net weight: Main screen 68.8kg, sub board 20.5kg(SK-NBB7501); Main screen 66.18kg, sub board 20.5kg(SK-NBB7502); Main screen 66.18kg, sub board 20.5kg(SK-NBB7503)

Gross weight: Main screen 93.5kg, sub board 27.3kg(SK-NBB7501); Main screen 90.88kg, sub board 27.3kg(SK-NBB7502); Main screen 90.88kg, sub board 27.3kg(SK-NBB7503)

Installation: Support wall-mounted installation / removable bracket installation

System Suppport: Andrid 8.0 CPU Dual-core A73*2 and dual-core A53*2 1.5GHZ GPU G51MP RAM 3GDDR(SK-NBB7501); Support Andrid 11.0 (support German, English), CPU Quad-core ARM Cortex-A55*4 1.9GHZ, GPU Mali-G52 MP2(2EE)(SK-NBB7502,SK-NBB7503)

Memory: DDR4 4G

Storage: 32GB

Display Characteristics: 

Display size: 75 inches

Brightness: 350cd/m2

Physical resolution: 3840*2160

Display ratio: 16:9

Contrast ratio: 4000:1

Color temperature: 6500k

 Viewing angle: 178°

 Effective display area: 1692*931mm(SK-NBB7501), 1650*743mm(SK-NBB7502), 1650*743mm(SK-NBB7503)

 Service life: ≧50000 hours

Power Characteristics: 

Power input: 100~240V/5A/60HZ/50HZ

Power: ≤500W(MAX)

Standby power: 0.5w

Signal Port Characteristics:

TYBE-C Front TYBE-C*1

AV IN*1

HDIM input*3 

USB Shared USB Input*3, PC USB*1 and Android USB Input*1

RJ45 input*1 

RS232*1

TOUCH USB-B Output*1 and TOUCH USB-A Output*1

Coaxial audio output

VGA IN*1(SK-NBB7502,SK-NBB7503)

AV out Audio/Video Output(SK-NBB7502,SK-NBB7503)

Control Features: 

Support infrared remote control function

IC swipe card on/off (30mm*50mm)(SK-NBB7501 optional; SK-NBB7502,SK-NBB7503 standard)

Support OSD touch menu control function

Supports physical button control function(SK-NBB7501)

Accompanying Sound Function: 

Support five-finger recognition touch a key off the backlight function;

Support 2.4G stable transmission, the user can amplify the lecture through the wireless microphone, with adaptive volume adjustment function, convenient and quick;

Audio power: 2*15W;

Writing characteristics: support microphone audio recording local save function;

Capacitive characteristics: the surface of the blackboard supports chalk writing, liquid water pen writing, etc;

Subboard: 

solid composite board, surface baking paint fine sand processing, easy to write, easy to erase, support chalk, water-based pen, magnetic panel, easy to adsorb.

Built-in Video Platform(SK-NBB7502):

800W pixels autofocus camera and an even-masked LED fill light for perfect reproduction of A4-format content.

Camera(SK-NBB7503):

800W pixels, 3840*2160 resolution, eight-array microphone.