USBC Battery Case For YAESU walkie talkie Radio FT4X FT4XR SBR-28 Can be directly charged by mobile phone charger typec, with charging instructions 3D printed products PETG material Can install two 18650 Flat head cylindrical lithium batteries (not included) Can be charged with USBC cable, we will provide a charging cable The only downside is that the battery is a bit tight to load and unload. 3D printed products are customized products, usually shipped in about a week In addition, 3D printed products are not as perfect as traditional plastic products, and may be a little rough. Perfectionists are not recommended to buy Thank you very much for your understanding.