This tactical flashlight is fairly compact, very bright, and easy to operate. Although I just received it, the flashlight is made of metal and appears to be well built. When initially using the flashlight, you will need to remove the battery shield. I’ve included a photo of what the shield looks like because when I pulled my battery out to remove the shield,, it was not on the end of the battery. After some looking, I found that the shield had wedged itself inside of the flashlight battery compartment. The flashlight has options for very bright, medium bright, or low light. Red, green, and blue lens filters are included. The filters easily slide over the lens end of the flashlight. The flashlight also has a strobe function that is initiated by holding the light level selection button down for two seconds. I can operate the power button and brightness/strobe selection button with a single hand, but it is a bit of a stretch to reach both buttons. One-handed operation might be difficult for someone with small hands. The flashlight has a memory function. It remembers its brightness level when it is turned off and returns to that level when the flashlight is turned on the next time. The 5000 mAh battery is a rechargeable. I searched Amazon and found that replacements are available if needed in the future. https://a.co/d/h0mEoIl The battery lasted three hours on the high setting and then automatically reduced its setting to medium. When I attempted to reset it to high, it would no longer operate in high. It would only operate on medium or low. It continued to operate on medium for 30 more minutes. When I checked it again the charge battery light was flashing. I turned it off and connected it’s charging cable. The flashlight additionally includes a wrist strap, USB, charging cable, spare O-ring, and a holster. Initially, I had difficulty getting the flashlight in and out of the holster. I was able to overcome this by adjusting the side, flaps within the holster, and also by inserting the flashlight with its clip facing the flat back side of the holster. This allows me to tilt the flashlight away from the back of the holster, as I am extracting the flashlight. When I insert the flashlight with its clip facing the front of the holster, the clip on the flashlight tends to hang on the inside of the holster.