Heart Shape Led Necklace: 1. Hot items 2. Material: Plastic. 3. Battery included and operated. 4. OEM service. Heart Shape Led Necklace:1. Hot items2. Material: Plastic.3. Battery included and operated.4. Any led colors are avialable.5. Best choice for Valentine's Day.Heart Shape Led Necklace, Promotional Gifts, Valentine's Gifts. Heart Shape Led Necklace, Promotional Gifts, Valentine's Gifts