【Easy to Use】The installation of the bike only takes a few seconds and can be attached to the handlebar, seat post or anywhere on the frame, just press the button to install and power on. 【3 Modes】: The heart-shaped tail light has 3 modes for adjustment, including constant light mode, strobe mode, and slow flashing mode; click the heart-shaped taillight switch once to switch to constant light mode, click twice to switch to flashing mode. 【High Quality】Brand new bicycle taillight, with super flexible rubber. Ultra-bright and soft LED lights, as a warning taillight, the bike light very beautiful and bright 【Unique Design】It is designed for waterproof and night riding, so you can ride safely at night, even in the rain. 【Wide Applications】Package includes 1 heart-shaped tail light; You can also give the heart-shaped tail light as a gift to your friends or family; The heart-shaped tail light is suitable for night walking, cycling, room decoration, etc. Description: Easy installation: Our premium bike lights can be installed in seconds with no tools or other equipment required. Add a light to your seat post, pack, helmet or other areas of your bike for maximum safety. Two modes of Light: Strobe and Steady modes, so you can be easily seen in morning fog, at dusk, at night and at dawn. Designed for Safety: These ultra-bright LED lights are powered by two lithium-ion batteries. This helps other cyclists, drivers, and pedestrians see you when you're riding in low-light conditions or in complete darkness. Lightweight, waterproof, and exquisite in appearance > Its waterproof silicone outer material. Details:< / p> Power supply: two replaceable button batteries Color: red, blue, green, multicolor Package includes: 1 Heart Warning LED Tail Light Bicycle Heartbeat Warning Light LED Tail Light Waterproof (Red) Bicycle Heartbeat Warning Light LED Tail Light Waterproof (Red) Bicycle Heartbeat Warning Light LED Tail Light Waterproof (Red) Bicycle Heartbeat Warning Light LED Tail Light Waterproof (Red)