USBC rechargeable Battery PB-S5 For AIWA HS-PX1000 EX3000 PX540 PX550 PX610 3.7V 280mAh Approximately 2V 500mAh ?In bulk, Cassette recorder not included. Just the battery? This is a rechargeable Lithium polymer battery with a built-in USB charging port. We will provide a USBC charging cable. 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