Authentic product, app connected. There are no issues with sound. Due to damage, please use it for repair or parts. [Condition] Please be sure to check the condition by looking at the photos. [Included Items] Only the items in the photos are included. ★ Cleaned & disinfected with alcohol. ※ Due to being a junk item, returns and exchanges are not accepted. Please refrain from purchasing if you are sensitive to imperfections or seek perfection. ✔ Shipping Method It will be wrapped in bubble wrap and shipped via Yuu Yuu Mercari delivery. Please understand. ✨ I am not considering lowering the price for the time being. Thank you very much.