Vissonic 5g WiFi Wireless Microphone Digital Voting+Interpretation Conference System

VISSONIC 5G WiFi Wireless Microphone Digital Voting+Interpretation Conference System  Features  Stylish, low profile design with touchable interfaceWireless communication, setting up all system in few minutes to be ready for using, and put them away in short time as well5 buttons for voting and ranking.Detachable battery pack is easy to replace and charge, working time is 22 hours, 30 hours for standbyBuilt-in DC connector for power supply without batteryInternal high fidelity loudspeakerbuilt-in up 3 channels interpretation (optional on another model)Head-set interface in both sides with volume adjustLine-in interface which allows microphone or other line-in device like cell phone, laptop to pass audio through to perform teleconference Full-digital signal transmission and processing, completely avoid the RF interference from cell phone or similar devices. Support pluggable microphone and different length of microphone with strong audio collecting ability.Time and date display on the OLED screenTimer on display to set certain time for each delegate to speak, will remind user or close the MIC automaticallyAll units can be configured as Chairman or Delegate unit through software settings based on model WVC-TControl &IndicatorsEach unit with two-color LED indicator on microphone, red for speaking, green means need acceptance from chairman to speak128x32 OLED display with volume bar, clock, time span of microphone activating, MIC ON/OFF etc and other information.Indicator for Volume adjustment5 voting keys with indicators, While no launching voting, no.2 and no.3 button is also work as channel selecting buttons, no.4 and no.5 work as volume buttons.Indicator for MIC ON/OFFChairman unit with priority button and consent button for the delegatesPower ON/OFF button is hiding on the left side   Technical Parameters      ButtonTouchable interface, no physical buttonsSound Pickupheart type capacitanceDisplayOLED display 128 × 32Sensitivity-46 dBV / PaMaximum power consumption2.0WDirectivity0 ° / 180 °> 20 dB (1 kHz)Headphone load16ΩHeadphone volume10mWHeadphone jack3.5mm stereoInput impedance2kΩSNR70dBFrequency response20 ~ 20000HzEquivalent noise20dBA (SPL)Main materialABSOperating temperature0 ºC to + 55 ºCColorBlackThe maximum sound pressure125dB (THD