WonderSwan Dedicated Battery Pack "WonderPack" A dedicated battery pack for the WonderSwan, released by Flash Masta. This battery pack allows charging via a USB Type-C cable. By attaching this, you can play using rechargeable power instead of dry cell batteries, and it is compatible with all WonderSwan consoles. - The WonderSwan console itself is not included. The items in the 5th and 6th images are the ones for sale. - It is already discontinued, so it is difficult to obtain. - I have stored it at home after purchase. - It is new and unopened, still in its bag, so I have not confirmed its operation. Please understand. - No price reduction is possible. - It is also listed on other flea market sites, so please forgive me if it sells out. - Returns are not accepted to prevent substitution. 【Product Description】 The following is an excerpt from a product review. Since I don't have a full understanding of the details, please forgive me if there are any mistakes. Optimized shape for the outer shells of WonderSwan Color and SwanCrystal, compatible with models equipped with IPS LCD replacement kits, and built-in 2000mAh battery that supports 10 to 18 hours of gameplay. It features USB Type-C charging and an LED indicator to show the battery status. It can be attached and detached smoothly, and allows the console to stand upright when attached. It can be used with all WonderSwan series consoles. It uses a 3D-printed shell, USB Type-C for charging and power supply, and is designed so that the status color of the indicator lamp changes according to the remaining battery level. When the WonderPack is perfectly attached to the battery box, it has a form that protrudes on the back side. It is designed not to interfere with fingers during both vertical and horizontal gameplay, and it is advertised that it can also be used as a display stand.