The Logitech FreePulse Wireless Headphones are remarkably light, flexible, and resilient. The sound quality is decent overall with an emphasis on bass

Stereo, Black, Behind-the-neck, Headphones, Mini-phone stereo 3.5 mm, 2 years Limited warranty

Itz qualities.. 

The Logitech FreePulse Wireless Headphones are remarkably light, flexible, and resilient. The sound quality is decent overall with an emphasis on bass. The Bluetooth transmitter can be used with any audio source that has a minijack headphone output.

THE BAD

Troubleshooting possible Bluetooth connection problems can be a hassle compared to the reliability of hardwired headphones. Unlike previous Logitech designs, there are no playback controls on these headphones.
THE BOTTOM LINE
Compared to the range of options out there for Bluetooth MP3 player headphones, the Logitech FreePulse Wireless Headphones offer exceptional design and value.