Dn'G 4K Network Camera L40 4K Ultra-HD Stereo

4K Ultra HD Resolution (4000×3000), Every Detail Revealed:

Setting a New Clarity Standard for Educational Demonstrations

The L40 is equipped with a high-performance CMOS sensor, supporting up to 4000×3000 4K ultra-high-definition resolution — several times more detailed than standard 1080P.

Precision instruments in science experiments, fine brushstrokes in art classes, and tiny mathematical subscripts are all captured with stunning sharpness and clarity. Every step of the teacher's demonstration appears magnified, giving students a front-row experience that ensures no detail is missed and understanding is deepened.

Dual-Mic Stereo Sound, Immersive Audio:Bringing a Real Classroom's Auditory Dimension to Remote Learning

The L40 features two built-in high-sensitivity microphones that form a stereo pickup array, capturing not only clean and clear voice but also the direction and spatial sense of sound. When a teacher moves across the podium while speaking, students can perceive the shift in position through the audio.

During group discussions or classroom interactions, different speakers' locations are clearly distinguished. This immersive stereo experience transforms online classes from mere sound into a lifelike, in-classroom auditory experience.

80.53° Optimized Field of View, Focused on Teaching:

Minimizing Distractions to Center Attention on Content

The L40 features a carefully selected 80.53° lens angle that captures ample teaching content while effectively reducing background clutter and irrelevant surroundings.

Unlike ultra-wide-angle lenses that may introduce visual noise or edge distortion, this moderate angle keeps the focus on the teacher, teaching aids, and board work, with a clean, professional composition. Students won't be distracted by environmental details — classroom priorities are clear at a glance, and learning efficiency is naturally enhanced.