Wireless headphones provided a major boost to the headphone market. One reason why is that doing away with the cord made it much easier –- and safer — to use headphones while exercising.
The patent-pending, over-the-ear Smart Listening Device (SLD) headphones take Bluetooth headphones one step further by adding the Android operating system, enabling users to download music and other media files directly to the headset. Other features include a built-in pedometer to track fitness accomplishments, USB connectivity, built-in GPS, and built-in internal microphones for phone calls and Skype conversations. Each set of headphones can play 8 hours after less than an hour of charging its lithium battery.