... computer earphone, etc *with microphone *double plugs *handsfree, in-ear Computer earphones, Laptop earphones, Notebook computer ... earphones, PC earphones, in-ear, handsfree, dual-plugs (Computer dual-plug DT-038) *Feature ... hearing protection. Only +/-1.5dB difference of two ears, uniform and mixed, avoid the hearing-impaired. Ear-protect: do not hurt the ear or losses hearing ...