☆How Long Can The Light Up Tambourines Stay On? - 3 batteries are included in each tambourines, which make it longer life & brighter . You can turn On/Off for saving battery life and replace batteries for reusing. | ☆Why it will make our party so fun? - The LED Tambourines can shift between 3 Modes: fast flashing, slow flashing, and alternately flashing. Flashing light up will be a hit at your party. | ☆Where Can I Use Flashing Tambourine? - Perfect for concert ,wedding, birthday parties, clubs, sporting events, nightlife, raves, festivals, bachelor/bachelor parties and any other night time event. Also a Good toy for your children playing. | ☆Are Tambourines Toys Safe? - High quality durable hard plastic, all products are CPSIA Compliant. Bringing tons of fun for children and adults. | ☆Can I Refund Or Replace? - For any quality problem, Aywewii team promise 18 months for exchanging or full refund. 24 hours for All emails replied to solve problems. So please don't hesitate to contact Aywewii Team for any issue.