Technical Requirements
To deliver high-quality online lessons, you'll need reliable equipment and a suitable teaching environment. Here's everything you need to get started.
Device Requirements
ComputerRequired
- Desktop or laptop (Windows 10+ or macOS 10.14+)
- Processor: Intel i5 / AMD Ryzen 5 or better
- RAM: 8GB minimum (16GB recommended)
- Built-in or external webcam
- Modern web browser (Chrome recommended)
Tablets and smartphones are not suitable for teaching.
HeadsetRequired
- Over-ear or on-ear headphones with microphone
- USB or 3.5mm connection
- Noise-canceling microphone preferred
- Comfortable for extended wear (2-4 hours)
Avoid using built-in laptop speakers/mic or earbuds.
WebcamRequired
- 720p HD minimum (1080p recommended)
- 30 fps frame rate
- Built-in laptop camera acceptable if quality is good
- External webcam for better positioning
Position camera at eye level for natural interaction.
Network Requirements
Download Speed
10 Mbps minimum
25+ Mbps recommended
Upload Speed
10 Mbps minimum
15+ Mbps recommended
Connection Type
Wired ethernet preferred
WiFi 5 (802.11ac) or better if wireless
Latency
Under 100ms to Korean servers
Under 50ms for best experience
Network Tips
- Use a wired ethernet connection whenever possible
- Position your router close to your teaching space
- Avoid peak internet usage times if connection is shared
- Test your connection before each teaching session
- Have a mobile hotspot as backup
Environment Requirements
Good vs Bad Setup Examples
✓ GOOD SETUP
600 × 400px • WebP
좋은 조명, 깔끔한 배경
✗ BAD SETUP
600 × 400px • WebP
역광, 지저분한 배경
📸 Good vs Bad comparison photos needed (600×400px each)
Lighting
- Face a window or use front-facing light source
- Avoid backlighting (window behind you)
- Soft, diffused lighting is best
- Ring light or desk lamp recommended
- Consistent lighting throughout the session
Sound
- Quiet room with minimal background noise
- Close windows and doors during sessions
- No TV, music, or conversations in background
- Avoid echo-prone rooms (use curtains/rugs)
- Inform household members of teaching schedule
Background
- Clean, uncluttered background
- Neutral or solid color wall preferred
- Professional appearance (no beds, messy areas)
- Virtual backgrounds acceptable if hardware supports
- Avoid distracting posters or moving objects
Troubleshooting Checklist
Before Each Session
- 1.Test internet speed (speedtest.net)
- 2.Check webcam and microphone are working
- 3.Close unnecessary browser tabs and applications
- 4.Ensure device is plugged in or fully charged
- 5.Check lighting and adjust if needed
- 6.Silence phone and notifications
Common Issues & Solutions
Video freezing
→ Switch to wired connection, close other apps, reduce video quality
Audio echo
→ Use headset instead of speakers, mute when not speaking
Background noise
→ Enable noise cancellation, move to quieter room, use push-to-talk
Poor lighting
→ Add front-facing lamp, close blinds if backlit
Connection drops
→ Restart router, use mobile hotspot backup, move closer to router
Not Recommended
✕Teaching from cafes, co-working spaces, or public areas
✕Using mobile phones or tablets as primary device
✕Relying solely on WiFi in areas with poor coverage
✕Teaching from a car or while traveling
✕Shared computers without admin access
Have the Right Setup?
If your equipment meets these requirements, you're ready to start your application!