GearXS via eBay offers the SoundLogic XT Bluetooth Track & Find Tag with Voice Recording for $8.10 with free shipping. That's the lowest total price we could find by $2. This Bluetooth-connected tag allows you to find lost keys or other valuables via a smartphone app. It also features voice recording capabilities, so you can add phrases such as, "I'm over here, dummy," or, "Hey, here I am, right where you left me."