1,specification

Speaker:50mm Dynamic typeImpedance:32 OhmsSensitivity:105dB+/-4dBFrequency:50Hz-20KHzMax.Input power:100MwMicrophoneMicrophone:Condenser typePalar pattern:Omni-directionalSensitivity:-58dB+/-3dBFrequency:50Hz-16KHzCord length:2m+/-3%Connector:3.5mm stereo plugx2

2..you can design logo on the ear cap.

deep bass headphones