Catch the sound with built-in amplifier and expands in a high-performance amplifier. Volume dial with 音量 ダイヤル 付き で 5 レベル に 音量 可能 調節 。 allows the volume to 5 level adjustment. Recently, is recommended to those that have weak hearing. Is compatible with right and left ears. This stub type microphone isn't hearing aids for the hearing impaired.
Set includes: Body Earphone Cap （ S/M/L 1 each ） 3 X for testing batteries.