Featured with aluminous housing and informative LCD screen, EJ-7 series is OKAYO’s professional language interpretation system. External antenna makes up to 100-meter operation range possible. No matter you are in an international conference or a lecture theater, you won’t feel interference during the speech or lecture. Further, 3 sensitivity levels can be adjusted upon request to optimize the usage quality. If the wireless receiver system is needed, you can directly connect an active speaker or an amplifier with the receiver.