One color change / one normal. Color change is white when warm, pink / red when cool. *60 day, no questions asked return policy. *As a TOP RATED PLUS seller, I provide some of the best customer service and satisfaction. *I pack all orders with great care and provide next day shipping to ensure safe and timely arrival of your goods. *Electronics are shipped without batteries unless otherwise noted. *If something arrives and is not to your satisfaction, please let me know and I will make it right. Customer service is my highest priority. *I like to give fast and positive feedback and try to do so upon receipt of payment. *Thank you for your business! You are very much appreciated.