... nice design 2. with Microphone and voice control. 3. with blister package. 4. OEM order is welcome ... 1.wired 3.5mm mp3 mp4 computer headphone, Computer headphones, headset ... .Superior comfort and fit with soft cushion design.3.Frequency response:20-22,000Hz4. Driver unit:40 ... : Less than 3% at 1KHz 40mw 7.Weight : Approx 205+/-3 grams8. The plug size is 3.5mm. But if ...