Buying a birthday gift for your 14-year-old boyfriend is easier than you think. You don't have to spend a lot of money either, because your boyfriend probably already has something for which you can get him an accessory. When in doubt, it never hurts to ask either.
Video Game
Teenage boys love video games. Odds are your boyfriend already has a video game console, if not a few. Talk to some of his guy friends to find out about a particular video game he may want and what console it's for. If your boyfriend doesn't own a video game console, get him a game he can play on his computer.
DVD
DVDs make an ideal gift because they provide hours of entertainment. Buy your boyfriend a DVD of his favorite TV show or movie. Another perk of getting him a DVD: you can watch it together.
iTunes Gift Card
An iTunes gift card is an excellent gift for a 14 year old boy. iTunes gift cards are inexpensive, so you don't have to worry about spending a great deal of money. They also give your boyfriend the option to buy any MP3 music files he wants, so you don't have to worry about getting him something he doesn't like.
MP3 Player Accessories
If your boyfriend has an MP3 player, give him an accessory for it. You can choose from among several items, such as a new pair of ear buds, a cool case or speakers. You can find most MP3 accessories for less than $20.
Movie Tickets
Buy your boyfriend tickets to a movie he wants to see -- a gift and a date in one because the two of you can go to see the movie together. Check local theater listings for a movie that's coming out around the time of his birthday, then ask him whether he thinks that movie looks good.