Product name: Auto LED smart light-emitting water coaster
Coaster material: Acrylic + LED
Product size: 68mm
Installation position: water cup tank
Color classification: colorful (switchable blue, red, white, yellow, green, pink purple, ice blue monochrome)
Instructions for use: The product will light up when it is dark, and it will automatically go out within 15 seconds without vibration, and vice versa.
Battery power supply: rechargeable battery, can be used normally for about 15 days when fully charged, car USB, Android data cable
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