Thank you for viewing. It was working fine until recently, but suddenly the sound stopped coming out when I turned it on. I can hear what sounds like a wah effect on the noise, but I don't know the cause. Due to the above, this item is being sold as junk. Please refrain from purchasing if you do not understand the nature of junk items or if you are overly concerned about the condition. Also, due to the prevention of issues such as returns, we will not accept returns or exchanges. Please understand that we will prioritize the person who purchases the item, even if negotiations are ongoing. Thank you.