KEY FEATURES: 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 battery with quick charging. Pair up to two Bluetooth® devices with multipoint connection.