【Operating two wireless mic-transmitters on the same frequency simultaneously】The presenter speaks into a microphone transmitter and the audience use ear-hook receivers to hear the message.What makes it amazing is that receivers could hear voice messages from two transmitters on the same channel,it means that audience could hear two presenters or tour guides’ talking in each group;When speaking to main microphone transmitter,the deputy transmitter could send background music to receivers.

【Dual Transmitters Mode】EXMAX EXD-6824 Wireless tour guide microphone and ear-hook headsets system enables up to two transmitters--presenters to speak on the same channel ID in each group. Transmitter also has an AUX input which enables to connect a MP3, Smartphone,MP4 to the system, to play background music or pre-recorded voice files.9999 Selectable 2.4GHz licence-free world-wide channels accommodating hundreds of groups working on the same place as long as they are on different channels.

【Key Datas】Transmission distance could be up to 150 meters/492ft.Transmitter has built-in 900mAh lithium battery which could be used for 25 hours and receiver built-in 380mAh lithium battery for 23 hours.0.15lb weight for the transmitter with 0.04lb for each receiver;convenience for a listener to hang on the ear.The transmitter has mute function.If the interpreter sometimes does not want the audience to hear his speech, he can press the mute button and the audience will not hear his speech.

【Portable Charging Case 32-slot:】Portable Charging Case is designed to be fashionable and very portable with battery charging system for EXMAX EXD-6824,EX-624 device which has 2 devices for presenter and 30 devices for listeners or visits. In addition, it has battery protecting system which will protect over charging problem by cutting circuit when battery is fully is charged and this will extend battery useful life. The 32-slot aluminium alloy Charge Case portable,durable,fire protection.

【 Audio Transmission Tour Guide System】In each group, transmitter and receivers should be set on the same frequency Channel ID,for example, Group A: transmitter A is set on Channel ID 05, so receivers A should be set on Channel ID 05 accordingly.Different groups should use different frequency Channel ID, so they will not interfere with each other.Widely applied for teaching,courtroom church translation,museum city tour,exhibition/silent conference, simultaneous interpretation,private speech.

【Dual Presenters Mode】EXMAX EXD-6824 Wireless tour guide system enables TWO transmitters speaking on the same channel in each group. Transmitter has an AUX input for connecting MP3, Smartphone,MP4, playing background music or pre-recorded voice files.9999 Selectable 2.4GHz licence-free world-wide channels accommodating hundreds of groups working on the same place as long as they are on different channels. Speaking at a comfortable level to the group whilst ensuring they are clearly heard.

【Dural-Transmitter ONE-Way Audio Voice Transmission】EXMAX EXD-6824 Wireless Tour Guide System, Assistive Listening & Translation Equipment for Church, School, Factory Tours – 100m(328FT)Audio Voice Transmission RANGE Whisper System, Clear Sound, Rechargeable, Expandable Interpretation Device with Unlimited Receivers.Wireless Voice Transmission System Allowing Two Transmitters to Speak on the Same Channel ID. Compact design: transmitter only 0.15lb/70g, receiver 0.04lb/18g. Easy to carry in a pocket or on a lanyard. Great as wireless church headsets, interpretation equipment. (Note: not automatic translation; supports live interpreters.)

【Crystal-clear Audion】EXMAX EXD-6824 tour guide microphone and headset system is Perfect for museum tours, and factory visits, ensuring every listener stays engaged. Lightweight & Portable Translation Device – transmitter only 56g, receiver 46g. Easy to carry in a pocket or on a lanyard. Great as wireless church headsets, interpretation equipment, or classroom assistive listening devices.(Note:not automatic translation; supports live interpreters.)Clear Sound Quality with Interference-Free Signal – Advanced PLL wireless technology ensures stable transmission and reduces background noise. This wireless interpretation system guarantees crystal-clear audio even in crowded or noisy environments.

【Easy Operation】Turn Transmitter into Syncing mode, put receivers close to transmitter and turn on receivers, receivers channel ID will sync to transmitter's automatically.Transmitter has mute function.If interpreter does not want audience to hear his speech, just press the mute button and audience will hear nothing.Small, light and portable,each little device comes with single charger.0.15lb weight for the transmitter & 0.04lb for each receiver;convenient for audience to wear on the ear.