LumosGuard addresses the safety and companionship needs of nighttime travel and outdoor activities. Its dual front and rear light sources provide omnidirectional illumination, eliminating the blind spots of traditional flashlights. The detachable taillight can be used as a headlamp, wearable flashlight, or bicycle light, and integrates GPS emergency positioning to enhance safety. The fusion of light and music provides illumination while alleviating fear and offering a sense of companionship. Its modular design transforms safety into a warmer, more intimate nighttime experience.