Sony Wireless Stereo Headset Silver MDR-1ABT / S<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Type: headband， Stereo / Mono: Stereo， structure: sealed， noise-canceling: non-compliant </span></li><li><span class="a-list-item"> Surround: non-compliant， wireless: Bluetooth， Interface: mini plug (3-pole) / Bluetooth </span></li><li><span class="a-list-item"> Maximum input: 100mW. Frequency band (L): 4Hz， frequency band (H): 100000Hz </span></li><li><span class="a-list-item"> "If the communication condition is poor， the BLUETOOTH device may react incorrectly to the operation on the headset." </span></li><li><span class="a-list-item"> "The available functions may vary depending on the BLUETOOTH device. When you operate as illustrated above， it may operate differently or may not work at all." </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/410s1kFBkVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21QUNx-N5YL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/216-2ImkD%2BL.jpg" noproxy>