4K Ultra-HD Imaging
Clearer Learning and Meeting Details
Supporting a 3840 × 2160 4K resolution, the device clearly captures instructors, teaching materials, whiteboards, and meeting details.
Its fixed-focus design is suitable for standardized installation in classrooms, meeting rooms, and training spaces, providing stable image output for online teaching, remote training, and video conferencing.
122° Ultra-Wide View
Wider Coverage for Classrooms and Meeting Spaces
Featuring a 122° diagonal FOV, 107.2° horizontal FOV, and 90.1° vertical FOV, the device captures a wider classroom, training room, or small meeting space even from a limited installation distance.
With distortion below 5.6%, it helps maintain a more natural-looking image and a comfortable viewing experience for online teaching, training, and video conferencing.
Dual-Microphone ENC + 3W Speaker
Integrated Audio for Clearer Communication
The built-in dual-microphone ENC noise reduction system helps reduce the impact of background noise on voice transmission, supporting clearer communication during online classes, video conferences, and remote training.
With an integrated 32mm speaker and 3W output power, the device provides convenient voice playback without requiring an additional external speaker for everyday digital communication.
Application Scenarios
Stable Visual and Audio Communication for Education and Business
Online Classroom Teaching
Capture teachers, whiteboards, and learning materials in clear 4K detail for remote lessons.
Video Conferencing
Provide wide room coverage and integrated voice communication for daily business meetings.
Remote Training
Support instructors and participants in training rooms with wide-angle imaging and clear audio transmission.
Small Meeting Rooms
Cover compact meeting spaces from a limited installation distance without requiring multiple cameras.
Education Solution Deployment
Suitable for schools, training institutions, enterprises, and distributors deploying standardized USB communication equipment.
Reliable Quality Assurance
Key Performance Inspection Before Shipment
Each device can be checked against key imaging, audio, interface, and compatibility requirements before shipment to support consistent deployment performance.
Quality checks include:
- 4K resolution and image output inspection
- Fixed-focus and field-of-view verification
- Lens distortion inspection
- Dual-microphone ENC and voice transmission check
- Speaker output and frequency response inspection
- USB 2.0 interface and playback compatibility check
Through standardized inspection and quality management, the solution supports reliable visual and audio communication for education and business environments.
Technical Specifications
| Product Name | DGL40-S 4K Ultra-HD USB Camera |
| Model | DGL40-S |
| Image Sensor | CMOS |
| Resolution | 3840 (H) × 2160 (V) |
| Focus | Fixed Focus |
| Output Image | MJPEG / YUV2 (YUYV) |
| Field of View | Diagonal: 122° / Horizontal: 107.2° / Vertical: 90.1° |
| Lens Distortion | < 5.6% |
| Interface | USB 2.0 |
| Microphone | Dual Microphones with ENC; Ø6 × 2.7mm, 2 pcs |
| Microphone Sensitivity | −42dB ± 3dB |
| Microphone Impedance | 2.2kΩ |
| Microphone Frequency Response | 100Hz - 10kHz |
| Speaker | 32mm |
| Speaker Output Power | 3W |
| Speaker Sensitivity | 110 ± 3dB |
| Speaker Impedance | 32.0Ω ± 15% |
| Speaker Frequency Response | 20Hz - 20kHz |
Why choose us?
A Reliable USB Communication Solution for Education and Business
- 4K ultra-HD imaging captures instructors, learning materials, whiteboards, and meeting details with high clarity.
- Ultra-wide field of view and integrated audio help simplify standardized installation in classrooms, training rooms, and meeting spaces.
Key Advantages:
- 4K resolution for detailed image output
- 122° diagonal ultra-wide field of view
- Fixed-focus design for standardized installation
- Dual-microphone ENC noise reduction
- Integrated 32mm speaker with 3W output
- USB 2.0 connection for practical deployment
Hot Tags: 4K USB Camera, Ultra-HD Conference Camera, Wide Angle Classroom Camera, 122 Degree Webcam, Fixed Focus 4K Camera, Dual Microphone ENC Camera, 3W Speaker Webcam, Online Teaching Camera, Video Conference Camera, Remote Training Camera
