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This is the headphone superlux hd681, a headset designed to be used in music studios, having an optimum sound fidelity.
pros: audio quality, product build quality, plugin p / 2 and p / 10 gold plated, 3 meter cable.
Cons: Depending on the head of the wearer, it can tighten the head causing an uncomfortable pressure not allowing for long periods of use, and it is aggravated if the user wears glasses (but can be solved by changing the earpads for velvet straps), the the packaging on which it is sold does not give a protection to the product, it may happen that in the case of the delivery it will be damaged by it.
in the end for $ 25.00 dollars paid is a great phone for those who want to do a home study, listen to their music with good quality, or play games that need a good return audible to help in gameplay EX: counter striker - global ofensive, pubg, and others.
recommendable !!!