Remax RM-501 High Performance Wired In-Ear Earphone Stereo with Mic is a bass driven and noise reducing in-ear earphone. Type: in-ear earphones. Design: crooked conduct design. Audio jack: 3. 5mm. Length: 1.2m feature: standard headset, in-line control with microphone for call-handling. Long, tangle-free flexible cord. Compatible with all mobile and tablets.