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Beijing Donview Digital Technology Co., Ltd.

Supplier From China
Apr-19-13
Supplier : Projector, interactive whiteboard, whiteboard software with related abundant teaching resources , student response system, wireless writing tablet, wireless pointer, short-throw projector with projector screen and 3D glasses, touch screen, visualizer

Established: 1993

Verification Status



Contact Details:
7th Floor, No.5, Desheng Zhiye Buliding
Beijing 100120
China


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Jul-29-24

Wholesale Used Laptops Core I7

$180
MOQ: 100  Pieces
Sample Available
 
We have good quality Used and New Laptops of all brands.
Product Name Used laptops

Processor CPU Series: Intel Core i7 4-generation family
CPU Type: Intel Core i7 4702MQ
CPU frequency: 2.2GHz
Core frequency: 3200MHz
Bus Specifications: DMI 5 GT / s
Three cache: 6MB
Core Architecture: Haswell
Core / thread count: quad-core / eight thread
Storage Device Memory Capacity: 4GB (4GB Ã?? 1)
Memory Type: DDR3L (low voltage version) 1600MHz
Hard disk capacity: 500GB
Hard Description: Support the expansion turn mSATA SSD hard drive
Drive Type: No built-in optical drive
Display

Touch screen: does not support touch
Screen Size: 14 inches
Aspect Ratio: 16:9
Screen Resolution: 1366x768
Screen technology: LED backlit, matte glare mask
Graphics

Graphics Type: Dual Graphics (fever-level graphics card + integrated graphics)
Graphics chip: NVIDIA GeForce GTX 760M + Intel GMA HD 4400
Memory Capacity: 2GB
Memory Type: GDDR5
Memory Interface: 128bit
Number of stream processors: 768
Multimedia devices

Camera: 720p HD webcam
Audio System: Built-in audio chip
Speaker: Built-in speaker
Microphone: Built-in microphone
Network Communications

Wireless LAN: 802.11b/g/n wireless protocol
Wired LAN: 100Mbps Ethernet card

I / O interfaces Data interface: 1 Ã?? USB2.0 +2 Ã?? USB3.0
Video Interface: VGA, HDMI
Audio interface: headphone / microphone combo interface
Other interfaces: RJ45 (network interface), power connector
Reader: Multi-in-1 card reader
Input Devices Pointing device: Touchpad
Keyboard Description: Full-size keyboard
Power Description Battery: 6-cell lithium battery, 5900 mA
Life time: 5 hours, the specific time depending on use environment
Power adapter: 100V-240V 90W AC power adapter adaptive
Exterior Laptop Weight: 2Kg
Length: 339.2mm
Width: 239.5mm
Thickness: 26.4mm
Shell material: composite material
Case Description: Black
Notebook accessories Packing list: Host x1 notebook
Power adapter x1
Power cord x1
Manual x1
Warranty card x1

Shipping DOCS

1. Commercial Invoice

2. Packing list

3. Certificate of Origin

4. Bill of Loading

5. Form A/Form E

6. Other documents are according to customer's
Apr-07-11
 
The Short Throw projector Mount support most short-throw projector. It is made of aluminum. So It looks graceful and terse. It is easy to install. More importantly, there is one interface to support the receiver of short-throw portable interactive whiteboard.

Specifications
Weight : 6.5KG
Weight Capacity : ¡Ü70KG
Material : Aluminum
Projector Mount : Universal (Adapt for 90% models in market)
Height Adjustion : ¡À 10cm
Length Adjustion : 0.9m~1.4m
Packing : Carton
Packing Size : 105 * 20.


Carton Package.
Feb-20-14
 
Good day.My name is rich from xinxiang shilejia science & technology trading co., ltd.



Are you looking for a better, reliable supplier?



Then please take time to read my email because we are the answer to that question.We are a factory which specializes in manufacturing projection screens for more than 20 years.



About us:



1. We are a factory, not a trading company and we are a welfare factory with tax-free on our products.(so you are going to save a lot compare to others)

2. We have attended cantan fair(which is a prestigious event that only trusted companies are invited) and some international exhibitions in beijing shanghai and shenzhen.

3. Our factory is located in a village with rich labor and cheap land.



If you are interested in projection screens, for questions and free samples feel free to contact me.



Another good news is that we are having our monthly sale so don¡¯t waste your time and call us.



Skype:richsun66

Sincerely, rich
Oversea sales


Double cartons
Apr-07-11
 
Interactive Projector (Interactive whiteboard + Projector+ PC + Wireless touch controller)
This is an integrated solution which breakthroughs the tradition and integrates the whiteboard with the computer, Projector and wireless equipment. It is not only a portable whiteboard within projector and PC, it is also a multi-media, interactive and wireless equipment. It can not only save the space greatly, also can save more cost. Working with the extendable pointer E-Pen (Electronic pen) or stylus E-pen, you and your students can explore internet websites, build interactive flipcharts and create more opportunities for discussions and interaction in the classroom.

Specifications:
Projector
Native resolution : 1024¡Á768
Display technology : DLP 0.55"
Brightness : 2700 Ansi lumens
Contrast Ration : 2600:1
Lamp : 230W SHP
Lamp life : 5000Hrs
Projection Method : Ceiling, Front, Rear
Power Consumption : 250W
OSD Languages : Multi languages(English,German,Spanish,Portugese).

Portable whiteboard
Movement Detection Technology : Infrared
Active Area (max projection size) : 150 inch diagonal
Active Area (horizontal angle) : 33 +/- 2 degrees
Active Area (vertical angle) : 0-30 degrees
Calibration Technology : Infrared Positioning
Active Distance (from projection screen): 3.2 - 5 m
Connectivity Interface : 1 x USB Cable (connection distance up to 16 m)
Power Requirement : 4.5 ¡§C 9 W (from USB port)
Power Consumption : < 1.5 W.

Projection Size Distance between Receiver and Projection Surface
56 inch 1.6 m
68 inch 2.1 m
70 inch 2.3 m
75 inch 2.5 m
85 inch 2.8 m
92 inch 3.2 m.

Micro PC
CPU : Intel Atom N450 1.6GHz
Mainboard Chipset : Intel 945GSE+ICH7-M
Memory capacity : 2GB DDR2
Hard Disk : 160GB
Display Chip : Integration Intel GMA950 Video Card
Network Card : Internal wireless network card IEE802.11b+g,Ethernet adaptive card
Standard interface :USB2.0 port, 3 VGA port, RJ45, Binaural Headset Jack
Electric Power Source : DC20V port
USB Port : 3 USB 2.0
Card Reader : Built-in, Three-in-one.




Carton Package.
Jun-18-19
 
5000 ANSI LUMENS ULTRA SHORT THROW 3D ANDROID LASER PROJECTOR CAN PLAY 4 K VIDEO .NATIVE FULL HD , EYE PROTECTION, HIFI SOUND BUILT IN HIFI SOUND,DMD CHIP .65", SCREEN SIZE 80"TO 300 " 100"AT 0.5 METER LAMP LIFE 25000 HOURS
Jul-21-16
 
Main Business:
We are the unique all-around high-tech factory which had been devoted to software development, Interactive whiteboard manufacture, touch screen integrated machine manufacturing & Projector supplying(Epson & Acer) for 25 years now. We are also committed to supplying all the educational goods as you required. Pleae contact us sales(at)sxyouli(dot)com. Welcome more detail enquiry.
 
Our products are of top quality and top best selling products in Asia market, which can totally compete quality and technology with the world brand products like smart board while our price are much lower than it. 
 
We would like to provide you more detail products information for your reference if you need. Sincerely wish you can give us a chance to try our products.

 
Key Feature:
Highly integrated: IWB, PC, Projector, Visualizer, Speaker, Control unit, Wireless Mic and CATV interface.
Simple to use, one button switch different function.
The best cost performance solution.
 Expansibility and safety: build-in VGA input, USB and LAN port and independent power supply.
The quick responds, accuracy and smooth writing touch feeling by electromagnetic technology.
On a product:84 '' Infrared Whiteboard
Next Product:Infrared All-in-one IWB System
 
 
Application
Our touch LCD/LED Touch Screen/Monitor/Frame TV are widely used in education, audio vidio display, business for teaching, conferencing, video playing , multimedia center, meeting, presentation, gaming, government, business, advertising, displaying, querying and commanding industries and so on.
On a product:84 '' Infrared Whiteboard
Next Product:Infrared All-in-one IWB System
Sep-05-19
 
Ultra-short Throw LED Smart  Projector
       Interactive projector is mainly used in Education and Business field currently. LED light source been applying to P9, avoiding of bulb consumable items problems, which solved the biggest maintenance problem of traditional projector. Ultra short focus, which avoid the Shadows shade problem of short and long focus projector. P9 pushes all-in-one interactive projector applying to Education and Business into a much more higher level because of its built- in Android system(Windows Optional)/interactive function and strong 2.1 sound speaker. 


Specifications
Items Specifications
Projector
Projector type Portable (Business & Education & Home Theatre)
Brightness 800 lumens(ANSI 2500lumens)
Contrast Ratio 10000:1
Resolution 1280*800
Projection Method DMD TI 0.45", WXGA-800
Projection distance 0.2-2m
Projection Ratio 80"@ 0.383m
Lamp type Osram P2WLED
Lamp life 30000 hours
Throw Ratio 0.324@60"
Projection size 30-300 inch
color 16.7 million colors
Projection mode Ceiling, Rear, front
Interface 2*HDMI; 1* VGA; 1*Power; 3* USB2.0; 1*Audio In; 1*RJ45; 1*Coaxial SPDIF
Speaker 5W*2(Tweeters), 15W*1(Woofers)
Power 144W
Standby power
May-28-21
 
Ultr a-short projection distance: the laser projector itself only needs to be placed 2~76cm away from the wall to project a 60~180inch screen
Provide up to 180 inches of TV experience: theater-level laser projection TV
Ultr a-short-focus lens: using cutting-edge ultra-short-focus projection technology, the projection ratio (0.19:1) can place the projector screen in the TV cabinet and adjust the size to fit the screensize
Built-in Android system: built-in system, ready to use, no need to worry about cable entanglement
30000+ hours of service life: using German OSRAM LED light source, 4 hours of viewing every day, can be used for more than 20years
Small and portable: Mini body, easy to pack into a backpack, can be used for travel, business and office
Oct-24-18
 
100% ORIGINAL PRODUCT
100% authorized officer TRADER
100% Full Warranty with setup service.
100% Brand New in Box Genuine Guaranteed

Shipping Company :FedEx,UPS,EMS.DHL
Delivery Time : 3 working days
Minimum Order : 3Units
Delivery to any location
Payment terms: We accept Payment via Bank Transfer

Verification Status