Bitcoin is a Peer to Peer, Open Source, Decentralized currency. It has a limited supply of 21 million bitcoins ever to be in existence and it is divisible down to 8 decimal places. It’s decentralization means it is not controlled or owned by any individual, company, organization or government. Bitcoin relies on strong cryptography to protect users funds and is pseudo anonymous by nature. Bitcoin can be sent anywhere in the world, instantly and enables efficient cross border trade with low to no fees (the Bitcoin network has an option 0.0001 BTC fee) with very low barrier to entry- anyone can use it.
Bitcoin is changing money the same way the internet changed data. Anyone in the world can send money, a store of value, to anyone else in the world without any entities permission other than yourself. The protocol is open for all to verify and contribute to or to build new innovative applications on top of.