Huizhou Boxin Electronic Co., Ltd. [China]

Speaker:15mm Dynamic type Impedance:32ohms Sensitivity:105db+/-4db Frequency:20-20000hz CE,ROHS cert

Microphone: Condenser type

Polar Pattern: Omni-directional

Sensitivity: -58db+/-3db

                    -38db+/-3db

Frequency: 50-16000hz

Cable length:1.8m+/-5%

ear clip earphone