? Light Sensor: Lights will light up automatically at night/when dark only, automatically charging in the daytime. ? Color-changing Wind Chime: Mini chimes bring delightful sound, featuring a color-changing LED bulb illuminating the crystals at night, calmly and softly changing from one color to the next. ? Waterproof: IP65 waterproof design is limited to rain and moisture, do not immerse the product in water. ? Easy to Use: Convenient to hang, solar power, no wiring or external electricity required for use. The cute dog decorates your garden. ? Wide Application: S hook to easily hang from trees, fences, patio, garden, lawn, and more. Note ? The string can only be charged if "ON / OFF" is set to "ON"