Relatively rare retractable microphone design， the microphone is not in use， they can be returned to the microphone slot ears， and ears as one， beautiful and practical. Using a microphone background noise cancellation technology that allows consumers to voice more clearly when comfortable. OV-T660 with a black and gray color scheme， with the average square headphone unit housing is not the same， and after piano paint handling， looks more fashionable， its body made ​​of plastic material to build， lightweight body， the ear pads designed to compare thick， wear them more comfortable.

 

    

 

OV-T660MV with 40mm pronunciation unit， sensitivity of 105dB， frequency response range of 20-20000Hz， impedance of 32 ohms， from the parameter point of view， and there is no big difference between ordinary headphones. Headset sound quality performance is still possible， clear sound， good sense of hierarchy， but this is compared with the price of other headphones， is relatively prominent bass is quite good， there is a certain dive， listening to music， watching movies use no problem.