Using this telescopic antenna is easy. First, find the device where you want to use it. Look for a spot with a 3mm thread to attach the antenna at its base. You can extend the antenna by gently pulling out each of the 7 sections until it reaches the full 990mm length. To collapse it, just push the sections back in one by one. When using it, try different positions and angles to get the best signal, as it can bend and swivel above the first section. As for maintenance, keep it clean and dry. Avoid bending it too forcefully or exposing it to extreme temperatures. If you're not using it for a long time, collapse it and store it in a safe place. This antenna is designed to be a reliable replacement for your AM/FM radios, cassette players, and other devices, so enjoy improved signal reception with it.