Dhua LCH75-MC410-B 75 Inch Smart Interactive Whiteboard

Built-in System

Operating System of External Module

Android 9.0

CPU

Quad-core A55

CPU Frequency

1.9 GHz

GPU 

Mali-G31 MP2

RAM

4 GB

ROM

32 GB

Function

Applicable Operating Systems

Windows 7/8/10; Android

WiFi

Dual-band 2.4 Ghz/5 Ghz

Wi-Fi Hotspot

Dual-band 2.4 Ghz/5 Ghz; supports enabling hotspot and Wi-Fi at the same time

LCD Panel

Panel Dimensions

55-inch; 65-inch; 75-inch; 86-inch

Backlight

DLED

Aspect Ratio

16:9

Brightness

55-inch: 300 cd/m²; 65-inch: 350 cd/m²; 75-inch: 350 cd/m²; 86-inch: 400 cd/m²

Resolution

3840 (H) × 2160 (V)
UI: 1920 (H) × 1080 (V)

Viewing Angle

H: 178°; V: 178°

Lifespan

50,000 hours

Refresh Rate

60 Hz

Static Contrast

1200:1

Camera

Pixel

5 MP

Auto Control

Auto white balance

Distortion

≤ 5%

Max. Resolution

Android: 1080p@30fps; OPS: 2560 × 1440@30fps

Field of View

H:84.5°; V: 54.0°; D: 93.1°

Device Ports

Light Sensor

1

Front Button

1 × Power button (right side)

Front Ports

1 × USB 3.0 (left side)

Network Port

1 × RJ-45

Wi-Fi

1 × Wi-Fi; 1 × hotspot

USB

3 × USB 3.0; 1 × Micro USB

RS-232

1 × RS-232

Video Input

1 × HDMI IN

Audio Output

1 × 3.5 mm (Line out)

Others

1 × Touch

IrDA

1

Microphone

2

Touchscreen

Touch Technology Type

IR touch technology

Response Time

< 10 ms

Touch Points

20

Valid Touch

2 mm

Writing Mode

Finger + Stylus pen

Touch Resolution

32767 × 32767

Number of Multi-user Writing Points

2

Speaker

Power

Full frequency: 2 × 15 W

Built-in Speaker

2

Microphone

Pick-up Distance

Far-field sound pickup: 6 m–8 m (19.69 ft–26.25 ft)

Number of Microphones

2

AGC

Yes

Echo Cancellation

Yes

Polar Pattern

Omnidirectional

Intelligent Noise Filtering

YES

General

Power Supply

100–240 VAC, 50 Hz/60 Hz

Power Consumption

55-inch: 200 W; 65-inch: 250 W; 75-inch: 300 W; 86-inch: 400 W

Operating Temperature

0 °C to +40 °C (32 °F to +104 °F)

Storage Temperature

–10 °C to +50 °C (–14 °F to +122 °F)

Operating Humidity

10%–90% (RH)

Storage Humidity

10%–90% (RH)

Product Material

Metal casing

Protective Glass

Anti-dazzle tempered glass with a hardness of 7 on the Mohs scale

Casing Color (Frame/Rear)

Bottom: Silver; top/left/right: black

Product Dimensions

65-inch: 1,485.0 mm × 86.9 mm × 924.7 mm (58.46" × 3.42" × 36.41")(L × W × H)

75-inch: 1,707.2 mm × 87.1 mm × 1,050.1 mm (67.21" × 3.43" × 41.34")

86-inch: 1,953.0 mm × 87.1 mm × 1,188.6 mm (76.90" × 3.43" × 46.80")

55-inch: (with camera): 1,261.4 mm × 80.9 mm × 816.6 mm (49.66" × 3.19" × 32.15") (L × W × H)

65-inch: (with camera): 1,485.0 mm × 86.9 mm × 941.2 mm (58.46" × 3.42" × 37.06")

75-inch: (with camera): 1,707.2 mm × 87.1 mm × 1,066.4 mm (67.21" × 3.43" × 41.98")

86-inch: (with camera): 1,953.4 mm × 87.1 mm × 1,205.1 mm (76.91" × 3.43" × 47.45")

Frame Size

Top: 43.1 mm (1.70"); left/right: 16.1 mm (0.63"); bottom: 67.8 mm (2.67")

Packaging Dimensions

55-inch: 1,366 mm ×180 mm × 935 mm (53.78" × 7.09" × 36.79") (L × W × H)

65-inch: 1587 mm × 235 mm × 1070 mm (62.48" × 9.25" × 42.13")

75-inch: 1810 mm × 235 mm × 1157 mm (71.26" × 9.25" × 45.55")

86-inch: 2056 mm × 235 mm × 1334 mm (80.94" × 9.25" × 52.52")

Net Weight

55-inch: 27.5 kg (60.63 lb)
65-inch: 38 kg (83.80 lb)
75-inch: 54 kg (119.10 lb)
86-inch: 64 kg (141.10 lb)

Gross Weight

55-inch version: 32.5 kg (71.65 lb)
65-inch version: 46 kg (101.41 lb)
75-inch version: 65 kg (143.30 lb)
86-inch version: 77 kg (169.76 lb)

Holes Distance

55-inch version: 400 mm × 400 mm (15.75" × 15.75")
65-inch version: 400 mm × 500 mm (15.75" × 19.69")
75-inch version: 400 mm × 600 mm (15.75" × 23.62")
86-inch version: 400 mm × 750 mm (15.75" × 29.53")

Installation

Wall mount, mobile bracket

Standby Power Consumption

0.5 W

Packing List

Smart interactive whiteboard 1; Power cord 3; Stylus pen 2 ; Quick start guide 1; Wall mount bracket (already installed on the whiteboard) 1; Accessory package 1