I sent the PCB design that I was working on to fab a couple days ago. I should get it back by the end of next week.

• Supports talking between two devices
• Call and Talk button
• Microphone for voice in
• Has a "call" button which notifies the other talkie of a requested call by playing the Mighty Morphin Power Rangers Communicator notification through a tiny piezo
• Headphone jack for connecting headphones
• An audio filtering circuit to to make the sound a little cleaner
• Board cutouts for adding a wrist strap to wear the device on the wrist
• Connection for LiPo battery
• Voltage regulator: 3.3 V