Thank you for viewing. This is the Sony SRS-NB10. I purchased it about a month ago, but I'm selling it because I received another pair of earphones and no longer need it. Due to the circumstances mentioned above, this is a new, unopened product. However, please understand that this item has been stored by a private individual, so no returns or claims are accepted. - Model Name: SRS-NB10 - Bluetooth Compatibility: Yes - Continuous Playback Time: 20 hours - Design: Neck Speaker