Origami Beetle

Wondrous item, common
  Over the course of a minute, you can fold this enchanted paper into the shape of a 1-inch beetle, activating its magical potential for the next hour.
  Dropping Eaves. With extremely acute hearing and camouflage capabilities, the origami beetle is an effective tool in covert eavesdropping. When you craft this origami animal, you can give it a short set of instructions including a destination and a wait time. For example, you could tell the beetle to “land underneath that bench, wait five minutes, then return here.” The beetle has a flying speed of 30 feet and records all sound within 60 feet of it for the duration it waits. While waiting, it blends into its surroundings and is invisible to the naked eye. Upon returning to its folder, the beetle repeats all the sounds it recorded, shifted up two octaves.
  After this hour elapses, the origami beetle becomes a mundane, folded piece of paper. Because of this, the longest duration it can both record and repeat is 30 minutes, minus the time it takes to fly to and from the location.