I was happy with this product the hilt design the windows the weight the length but the day I opened it the colour was a white pink colour over the next few days it became more and more redder it first went hot pink then it went red then a dull red so I thought it was a battery issue so I replaced the batteries and it went Light Blue! Since the it has been doing this over and over again it keeps going pink. Is this how it should be because it doesn't seem right to me? Please advise.