How to use: To use the flashlight, first charge it via the magnetic charging feature on the tail switch. For handheld use, simply hold it and operate the tail switch. If you want to mount it on a weapon, use the slide rail mount with the mechanical lock. When using the remote switch, push the ring to lock it in place for quick operation. Note: Avoid exposing the flashlight to extreme temperatures or water for long periods. Don't try to disassemble it by yourself. Maintenance: Clean the flashlight regularly with a soft, dry cloth. Check the battery level frequently and charge it in time to keep it in good working condition.