Sony LinkBuds Portable Wireless Speaker | Light Gray Fashion Dynamic Action Sync - Yes

Dynamic Action Sync - Yes

It also offers 25% greater elasticity than polycarbonate

Power 1000 has passed 26 product test certifications from SGS

And because it's so efficient you get much more sound per watt enabling this full-range model to work well in wide-open spaces

Please refer to the Sony website

Sony LinkBuds Portable Wireless Speaker | Light Gray Fashion Dynamic Action Sync - YesSony LinkBuds Portable Wireless Speaker Product Highlight: Auto Switch swaps playback between LinkBuds devices. Enjoy one touch listening with the Quick Access button. Easy to carry with the detachable strap. X Balanced Speaker for impressive bass and clear vocals. 5 band equalizer and CLEAR BASS setting. Best in class call quality of any Sony wireless speaker. Included charging cradle for style and convenience. IPX4 splash resistant. Up to 25 hour