1. The higher the ambient temperature, the higher the temperature of the earphone would be when charging. Charge the earphone at a normal ambient temperature (15°C to 35°C). The temperature of the earphone will not exceed 45°C.
2. The higher the ambient temperature, the higher the surface temperature of the earphone in use will be, but the surface temperature of the earphone will not exceed the ambient temperature of 10℃. Please do not expose it to a high-temperature environment or sunlight for a long time.
3. Damage to the earphone will also lead to abnormal fever of the earphone (liquid inflow, falling, functional failure).
If the issue persists, take the earphones and proof of purchase to an authorized realme Customer Service Center for assistance.