Wireless earphones purchased on Amazon. They charge, but don't reach a full charge and the battery runs out quickly. Sound is not audible in one ear. Please note that a charging cable is not included. They will be shipped via Takkyubin Compact. If you only want the main unit without the box, they can be shipped via Yu-Packet Post Mini using Yu-Yu Mercari delivery, which will reduce the shipping cost. In that case, I will change the price, so please send a message before purchasing. Bundling with other items or changing the combination is also possible.