Using it since 1.5 years approx,
daily driver, morning, evening in bus(crowded, bad music system, no subwoofer, hell lot of noise)
Always With Viper4Android extra bass boost. Sometimes I play real loud. No damage to earphones.
Didn't change my normal hearing experience, since that loud volume(no distortion with heavy bass)+ chatter in bus = normalized.
Moto E and smaller phones cannot drive this Earphone at loud volumes with quality(bass) as it requires somewhat extra power due to 10 mm drivers.
Wires are high quality and build quality you cannot find another in this range imo.
without mic is cheaper. Mine is with mic