✅ Your dog's safety: The flashing LED lights can light up at night and are visible from more than half a mile away. The pet collar is practical for determining the pet's position and ensuring both your and your pet's safety. ✅【Three flashing modes】There are three flashing modes to choose from: continuous, slow, and fast. You can select the desired mode by pressing the button. ✅ Waterproof material: The safety light is made of high-quality, durable, and waterproof ABS and silicone buckles. The weather-resistant IPX7 material allows for use everywhere, whether in rain or snow. ✅【USB rechargeable】: The package includes USB, accessible via USB cable, for easy connection to powered devices such as Macs, laptops, computers, power banks, etc. ✅【Multifunctional】 The LED light chain is suitable not only for pets but also for cycling and running. The emitted light can protect your safety in the dark and remind you that vehicles are approaching your location. It provides ambient light that is bright enough to find keys or a keyhole, to locate tent ropes and camping equipment.