The Walkman NWZ-W273S by Sony, the Powerbeats2 by Beats and the NMotion by Jarv are highly rated wireless mini earphones as of 2015. Whereas the Walkman NWZ stores and plays music without requiring connection to another device, the earphones by Beats and Jarv use Bluetooth 4.0 to connect to other devices.
Sony's Walkman NWZ-W273S can store up to 4 gigabytes in its internal memory, allowing it to hold up to 2,000 songs. The product is completely waterproof at depths up to 2 meters. On a full battery, it can play music continuously for up to eight hours. It has a three-minute quick charge feature that provides enough power to last for 60 minutes.
The Powerbeats2 requires an external device to play music. It can charge and receive firmware updates through its Micro USB port and has a battery that can last up to six hours while playing music. Beats claims that the earphones are designed with athletes in mind, and as a result, the device is water- and sweat-resistant. The earphones come with various sizes of silicone earbuds.
Jarv's NMotion is another Bluetooth 4.0 device that can play music for up to five hours. The device also has a microphone, volume controls and call answering. It includes three different sizes of earbuds. NMotion has a range of 33 feet and charges through a micro USB port.