1. Product Overview
The COSOOS Original 2 Rechargeable Headlights are compact, lightweight, and designed to attach to shoes, providing illumination for various activities. They feature multiple light modes, an adjustable beam, and are rechargeable via USB-C.

Image: COSOOS Original 2 Rechargeable Headlights for Shoe Charms.
2. Package Contents
Verify that all items are present in the package:
- 2 x COSOOS Rechargeable Headlights for Shoe Charms
- 1 x USB-A to 2 USB-C Charging Cable

Image: Included components: two shoe lights and a charging cable.
3. Setup and Installation
3.1 Initial Charging
Before first use, fully charge the headlights. Connect the provided USB-A to 2 USB-C charging cable to a power source and to the USB-C port on each headlight. The green indicator light will flash during charging and become solid green when fully charged. Charging typically takes 40-60 minutes.

Image: Charging the shoe headlights using the USB-C cable.
3.2 Attaching to Shoes
The headlights feature a soft silicone bandage (strap) design for secure attachment. Hold the lamp on by the heel strap or attach it to jogging shoes using the shoelaces. Ensure the light is firmly secured to prevent wobbling during activity.

Image: Illustration of attaching the light to a shoe strap.
4. Operating Instructions
4.1 Power On/Off and Light Modes
The headlight features an easy-touch switch button. Short press the power button to cycle through the four available light modes:
- Constant High Light: Provides maximum brightness.
- Constant Low Light: Provides reduced brightness for extended battery life.
- Fast Frequency Flashing: A rapid flashing mode for increased visibility.
- SOS Strobe Light: A long press for 5 seconds activates an SOS signal.
To turn off the light, continue pressing the power button until the light switches off, or long press for 5 seconds to activate SOS and then press again to turn off.

Image: Overview of the four light modes.
4.2 Adjusting Beam Angle
The headlight features a 90-degree pivoting head, allowing you to direct the light exactly where needed. Manually adjust the angle of the light head to suit your visibility requirements.

Image: Adjustable 90-degree wide angle feature.
5. Maintenance
5.1 Charging
Recharge the lights using the provided USB-C cable when the brightness diminishes. A full charge takes approximately 40-60 minutes and provides 5-20 hours of working time depending on the mode used.
5.2 Cleaning
Wipe the headlights with a soft, damp cloth to remove dirt or debris. Do not use abrasive cleaners or solvents.
5.3 Storage
Store the headlights in a cool, dry place away from direct sunlight when not in use for extended periods. Ensure they are fully charged before storing to maintain battery health.
5.4 Water Resistance
The headlights are IPX6 waterproof, making them suitable for daily walking and use in various weather conditions. Avoid submerging them in water.
6. Troubleshooting
- Light not turning on: Ensure the battery is charged. Connect to the USB-C cable and check if the charging indicator light appears.
- Light not charging: Verify that the USB-C cable is properly connected to both the light and the power source. Try a different USB power adapter or cable.
- Light not staying attached: Ensure the silicone strap is securely fastened around the shoe strap or laces. The design is intended for a snug fit to prevent wobbling.
7. Specifications
| Model Number | YX02C |
| Brand | COSOOS |
| Light Source Type | LED (1-LED per light) |
| White Brightness | 50 Lumens |
| Power Source | USB-C Rechargeable |
| Battery Type | Lithium Polymer |
| Battery Capacity | 350 mAh |
| Working Hours | 5-20 hours (depending on mode) |
| Charging Time | Approximately 40-60 minutes |
| Water Resistance Level | IPX6 Waterproof |
| Material | ABS |
| Item Dimensions (D x W x H) | 1.2" x 1.8" x 1.7" |
| Weight (per light) | 0.8 oz (21.9g) |
| Special Features | Adjustable Light Modes, Adjustable Strap, Durable, Dustproof, Rechargeable, Weatherproof, 90° Adjustable Beam |

Image: Product dimensions and key features.

Image: Battery and charging specifications.
8. Warranty
This product comes with a 1-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects but does not cover damage caused by misuse, accidents, or unauthorized modifications.
9. Support
For technical assistance, warranty claims, or any questions regarding your COSOOS Rechargeable Headlights, please contact COSOOS customer support through the retailer where the product was purchased or visit the official COSOOS website for contact information.