... Bluetooth-enabled devices, such as cellular phones, PDAs, notebooks and Bluetooth A2DP enabled walkman/MP3/PMP/CD/MD/i-Pod ... and 600 hours standby time 10.Stable, accurate and sensible search of devices in range 11.Rechargeable Li-ion polymer battery 12.Portable ... , stylish, lightweight, and compact design 13.Easy to Wear with Collapsible ...