Sony DRBT30QS Stereo Bluetooth Clip-on Headset - Retail Packaging - Silver Ultra-portable Clip-on Style With Retractable Cords Remote Control On The Earpiece Subtle Built-In Microphone For Phone Call Usage Useful Rechargeable Function Talk/music Play Time Is Approximately 11 Hours Wireless Bluetooth headset with pair of earpieces and built-in microphone Built-in wireless transmitter lets you talk on cell phone without cables 30 mm neodymium drivers built into earpieces deliver powerful sound Offers up to 11 hours of wireless talk time and 100 hours of standby time Works with Bluetooth-enabled A2DP devices; 1-year parts warranty