For under $40, the CX 300 IIs provide good sound quality, with strong, but not overpowering, bass. Despite their low price, these earbuds also come three sets of swappable earplugs to help you get the best fit. While some users might find the asymmetrical cable slightly awkward, these are still a great option if you want to replace the earbuds that came with your portable media player, and don't want to spend as much as you did on the player itself.
How It Stacks Up
Sennheiser's new wireless headphones build on its popular HD 4 series
Two versions are set to ship this year: one with active noise cancellation and one without.
Sennheiser Ambeo headphones record your surroundings for better audio
The earphones have in-built microphones to capture 3D audio.