2X 16650 Battery Case Attachment For SONY DAT TCD-D3 The battery case contains two 16650 batteries, totaling 3200 mAh. USBC charging port with charging indicator light 3D printing requires production queuing time, usually we ship items in about a week Dear customer, I'm sorry, because 3D printing is not as perfect as traditional plastic products. If you receive the items and have any questions, please leave a message to me. Please don't worry, the items are guaranteed, thank you 3D printing material can withstand high temperatures up to 65?, 149? please pay attention to the temperature