【Innovation and Upgrades 1】 Our latest GP20A is an innovation and upgrade based on existing market products. This battery now features a USB switch function, enabling power-saving use by supplying power only when needed. 【Innovation and Upgrades 2】 Compared to existing market products, we have newly equipped it with a power output switch function, making it safer to use. 【Innovation and Upgrades 3】 Compared to existing market products, we have newly added an alarm function. It is equipped with high voltage alarm, low voltage alarm, and temperature alarm. When any of the alarms are triggered, the speaker icon will flash. The flashing will stop when the alarm is cleared. This allows for safer and more secure use. 【Features】 It is possible to check the internal temperature of the battery, display the remaining battery level, and display the voltage. Furthermore, it has two USB charging interfaces. 【Product Specifications】 The battery capacity is 20,000 milliampere-hours (mAh), the size is 24 cm x 12.1 cm x 5.8 cm, and the weight is 1.7 kilograms. 【Regarding Delivery】 If you have a preferred delivery date and time, please let us know after purchase. We strive to ship promptly, but please be aware that it may take a little time. Please note that shipping to distant areas such as Okinawa and Hokkaido will be at the recipient's expense. 【Regarding Inquiries】 If you have any questions, please feel free to let us know in the comments. Thank you for viewing.