Using the Klein Tools AEPJS1 is easy. First, power it on. Then, connect your audio device either wirelessly or with the included aux cable. If you want to take calls hands - free, just make sure the speakerphone function is enabled. When attaching it to a steel surface, simply place it close and let the magnet do the work. For mounting on a tripod or attaching to a lanyard, follow the normal procedures for those accessories. As for the Lighted Tool Bag, just hook it on as you would with similar items. When it comes to maintenance, keep it clean by using a soft, dry cloth. Avoid exposing it to extreme heat, cold, or moisture. If you're not using it for a long time, store it in a cool and dry place.