[Creative Heart Design] Unique heart-shaped bicycle tail light adds a stylish touch to your ride while ensuring visibility. [4 Lighting Modes] Choose from slow flash, breathing flash, quick flash, and steady light to suit various riding conditions. [Smart Auto-On/Off] Enters sleep mode after 30 seconds of inactivity and automatically turns on when vibration is detected. [Brake Sensing Technology] Enhances safety by intensifying the light output when braking is detected. [Memory Function] Remembers your last used lighting mode for convenience on your next ride. [Long Battery Life] 200mAh battery ensures extended use between charges. [Weather-Resistant] IPX6 waterproof rating protects against rain and splashes. Specifications: Model: YP0701481 LED Type: COB Material: ABS+PC Battery Capacity: 200mAh Waterproof Rating: IPX6 Weight: Approximately 19g (excluding bracket) Lighting Modes: Slow Flash, Breathing Flash, Quick Flash, Steady Light Special Features: Brake Sensing, 30-Second Vibration Auto-On/Off, Memory Function