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Cheap Conference Microphone for Discussion System SM312 SINGDEN: conference microphone Cheap conference microphone for discussion system SM312 SINGDEN SM312 Introduction Description: SM312 series digital conference system used Humanistic design simple and quick ...

Conference System with Voting/ Voting Conference System (SM616VC/SM616VD) - SINGDEN: active delegate units 6) Battery compartment (2.4G wireless microphone only) 7) Power switch, down to open (2.4G wireless microphone only) 8) External power supply input and upgrade interface (2.4G ...

Conference System with Voting SM816V - SINGDEN: active delegate units 7)"TALK" bottom, startup and shutdown functions 8) Headphones volume control button 9) Earphone connecting hole Accessories: Vote software: Connetion Sheet: Buying Guides Price ...

2.4G Digital Wireless Conference System SM913D-SINGDEN: active delegate units 4) "TALK" bottom, startup and shutdown functions 5) Display screens to show microphone id 6) Light indicator 7) Headphones port 8) Headphones volume control button 9) Power ...

Digital Wired Conference System-Mic-SM812C/ SM812D: active delegate units 6)"TALK" bottom, startup and shutdown functions 7) Headphones volume control button 8) Earphone connecting hole Accessories: Connection: Buying Guides Price term EWX price or ...

Wireless Conference System-SM613c/ Sm613d: active delegate units 6) 2 DIP switches, set the "VIP" mode and Battery selector switch (Figure 8.1) 7) AA battery box 8) power switch 9) the interface for computer program (users do not use) ...

Conference Microphone Unit-SM612C/SM612D: active delegate units. 4) battery compartment (2.4G wireless microphone only) 5) power switch, down to open (2.4G wireless microphone only) 6) External power supply input and upgrade interface ...

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Cheap Conference Microphone for Discussion System SM312 SINGDEN