Bonjour Elite Computer. Nous nous spécialisons dans la vente de portables neufs et d'occasion de haute qualité pour répondre à tous vos besoins informatiques. 1. Built-in buzzer, with emergency SOS alarm 2. Water/dust/drop proof, works normally in extreme environments 3. 22.5W Super fast charging, up to 3X faster 4. Built-in flashlight, press & hold the button for 5s to turn on, strong/soft/SOS 3 mode options 5. Dual built-in charging cables, compatible with various iP/Android devices 6. 4 output ports, provides charging for 4 devices 7. 20000mAh large capacity, power up your phone for about 5 days 8. Type-C port supports two-way fast charging 9. Smart digital display, remaining power at a glance 10. Supports QC3.0,PD20W,AFC18W, fast charging protocols and more Flashlight & buzzer:Press and hold the button for 3-5s to turn on the strong light mode; short press it again to enter soft light mode; short press it for the 2nd time to enter SOS quick flash mode and the alarm sound will be activated; short press it for the 3rd time to turn off the flashlight. Press and hold the button for 3-5s under any above modes, the flashlight will turn off. Accessories: 3A USB-A TO Type-C cable (0.25m), carabiner