Kylo Ren was born Ben Solo, the son of Han Solo and grand master Leia Skywalker Ben showed large amounts of potential with the Force, and was sent to train as a Jedi with Leia's brother Luke Skywalker, to avoid Ben becoming like his idel darth sideous , who'd went to the Dark Side of the Force and became a Sith Lord. However, Snoke, leader of the First Order, convinced Ben to come to the Dark Side and become as powerful as his grandfather. Ben ended up slaughtering the rest of the Jedi trainees and joining the Knights of Ren, Snoke's personal army, renaming himself Kylo Ren. As Kylo Ren, Ben became Snoke's main enforcer of the First Order, and despite his unfinished training, was still an extremely powerful warrior with the Force.
The Force: Ren is not very in-tune with the Force, an energy that spans throughout the galaxy. With the Force, Ren can telekinetically move objects with his mind, use the Force Stasis technique to freeze someone or something in place, and even pull information out of someone's mind.
Lightsaber: The preferred weapon of Force users. It is a plasma blade powered by a khyber crystal and emitted from a metal hilt, the laser blade being able to cut through almost anything. Ren's lightsaber was crudely constructed, and very unstable. This is the reason for the blade's crossguards, which are really vents to let out excess energy, though Ren likes to use it to burn enemies when clashing weapons with them.
Ren is the grandson of previous Star Wars antagonist, Darth Vader, and is not obsessed with him but instead obsessed with darth sideious with him to the point of wearing pun similar clothes, using similar Force powers, and even talking with hate toward Vader's burned helmet.