Earin ($199, ships April 2015)
If you are a music lover who prefers simplicity, then the Earin is perfect for you. Earin claims to have created the world's smallest wireless earbuds, weighing 5 grams and measuring only 14.5 mm x 20 mm. Playback lasts up to 3 hours, but with the accompanying cylindrical charging case, you can extend your listening by 10 hours while in mono mode. To enable mono mode, just place one bud in the capsule and it will automatically shut off and begin charging. With the Earin app, you can monitor battery life and adjust audio settings. When answering phone calls, the sound will be transmitted to the earbuds; however, because the earbuds aren't equipped with a microphone of their own, you'll need to use your iPhone to communicate back.