Buyers beware! Buying headphones online can be tricky business. Here are some things to consider before making a purchase. Here's our list of tips: 1. Look at reviews. If there aren't any reviews, check out other sites' reviews & ratings. 2. Make sure the product has a warranty. 3. Read the description carefully. 4. Ask questions if you have any. 5. Don't forget to read the fine print.6. Be wary...