1. [No need to weld 3 x 18650 batteries] It can accommodate 3 x 18650 batteries (flat head) (not included), and the new appearance design can charge 4 devices simultaneously, supporting charging and discharging at the same time. 2. The LED flashlight is both a power bank and a lighting fixture, with 2 * high-power dual lights and strong lighting effects, suitable for outdoor/evening emergency lighting. 3. [Comes with 4 cables] USB cable+TYPE-C cable+Micro-cable+suitable for IOS cable, convenient for going out without carrying additional cables. 4. [Portable Handheld] Comes with a lifting rope for easy carrying, can be hung on a backpack, and can be carried while charging without taking up space and affecting the use of the phone. 5. [LED display screen] Observe the battery level and usage at any time, and promptly recharge the power bank. Attention: The battery needs to be purchased separately with a 18650 (flat head) battery for installation before it can be used. Note that the