1. Photo: 3840 x 2160 800W
2. Pixels: 4K
3. Video resolution: 2048 x 1152
4. Charging voltage: DC-5V
5. Viewing angle: 90 degrees
6. Video format: MP4 video 2K
7. Photo format: JPG photo 4K
8. Function: video recording, taking photos, listening to music, answering calls
9. Charging interface: Type-C
10. Battery capacity: 400mAh
11. Packing list: glasses x 1, manual x 1, data cable x 1, glasses cloth x 1, zipper bag x 1, clear lens x 1
12. Size: about 16.1 x 17.6 x 4.7cm
13. Weight: about 63.8g

Features:
1. 2K HD recording/4K photo, intelligent noise reduction, smooth zoom, automatic monitoring
2. Can listen to songs / phone calls, safe riding
3. HD polarized light, blocking glare / glare / stray light, clear vision
4. Stereo HD sound, semi-open sound cavity
5. IPX6 level waterproof and sweatproof, sports design
6. Fine workmanship, comfortable to wear