Kadabra holds a silver spoon in its hand. The spoon is used to amplify the alpha waves in its brain. Without the spoon, the Pokémon is said to be limited to half the usual amount of its telekinetic powers. If it uses its abilities, it emits special alpha waves that cause machines to malfunction. When it uses its psychic power, it emits strong alpha waves that can ruin precision devices.
Pokédex entry #64
kadabra in Pokémon GO
It's possible to hatch kadabra from an egg?
No, kadabra can't be hatched.
How many CP would kadabra have after evolving?
If you’ve catched a kadabra and you want to know how many points it would have after evolving, use this evolution calculator and find out easily. You just need to write your Bulbasaur CP and then click “Evolve”.