Best Buy网店销售，原价：29.99元，现价：1.97元，运费1.99元，满25元包邮，店内取货免邮，点击进入订购页面。 The Dynex 740 Earclip Headset with microphone features volume control, amplified noise cancelling microphone, monaural headset, adjustable boom mic, 180 degree microphone and adjustable boom arm. Headset Speaker 2……

Staples ebay网店销售，原价：89.99元，现价：29.99元包邮，点击进入订购页面。 点击查看评价。 Closed ear headphones. 50mm drivers unit. Retractable microphone system, and in-line volume and mute controls with a USB connection. Lightweight suspension construction. Crystal clear high, low and mid-tones. Optimized soundsca……