Size: (L)X(W)X(H): 13.5X8X16.5cm/5.31”X3.14”X6.49” (appr.), Color: As the picture, Material: Plastic, Random songs: To Alices / Castle in the Sky / etc..
Basically copy coupon, view price history or create e-mail price alert. What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There’s only 1 record in my database, so I have no idea if the price is OK. We have found one coupon for this product!
Link: Banggood product page
1. ($14.39): BG6d78ac
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGMUSIC10, BGRCT10
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
There is only one database record (it was for $13.99), so you can’t see price history chart.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).