The Evel Knievel X600 Walkie Talkie set was made by Krypton Electronics in 1974.
The Walkie Talkies are one of the rarest EK toys and are seldom seen at shows or on the internet.
The value of a boxed pair can fetch up to $1,000 and loose sets are valued between $300 and $500.
There was also the X2 Sky Cycle AM Radio which is very rare and have sold for as high as $500.
The Evel Knievel Wheel Radio is another AM transistor radio which are not as rare as the aforementioned. These radios have a value between $100-$300 with packaging.