Co-Goods Featured in Kodomo no Kagaku (Children's Science Magazine) Study Timer Learning Timer Coro Time #Icchan Children's Goods USB-C Rechargeable, Mute Function, Volume Adjustment Timer Children Study Silent Mute Adults Pomodoro Educational Toy Educational Clock Elementary School Students White Compact Size Purchased in November 2025 from the Amazon official shop Used 2-3 times Box is crushed and torn Operation confirmed USB cable is unused, so operation is unconfirmed It was too early for a 2-year-old, so it became unnecessary There is a small stain in one place (See photo 12) Fine dust that can be brushed off is attached *Packaging method Cushioning material, zippered plastic bag, delivery bag *Shipping method Home delivery (Takkyubin) *Note No price reduction