Product Name: Fs Fhss Desktop Wireless Conference System Microphone with 500 Terminals Capability Model NO.: DCS-3021 Color: Black Pointing Feature: Cardioid Communication: Wireless Composition: Amplifier Video: Without Video Type: Voice Conferencing System Frequency Range: 2.4-2.5GHz Modulation Mode: Fs-Fhss Frequency Selectingand-Hopping Technology Frequency Response: 30Hz~16kHz Working Voltage: 3.7V Battery Capacity: 2600mAh Lithium Ion Battery Consecutive Battery Use Time( Speak Mode: >=20 Hours Microphone Stem Length: 310mm Weight: 0.5kg Trademark: GonSIN Transport Package: Full-Sealing Package Specification: High-End Origin: China Product Description FS-FHSS Wireless Congress System DCS-3021System Features♦ Modern-style design;♦ It utilizes FS-FHSS( Frequency Selecting - Frequency Hopping Spread Spectrum) GonSIN innovated and digital wireless communication to detect and select available frequency andavoid co-channel interference; select available frequency and avoid co-channel interference;♦ In support of multiple systems to be used concurrently without mutual interference;♦ Capability to process up to 500 devices within a large-sized FS-FHSS wireless congress system;♦ All parts of the system is small size and light weight, all-in-one package is optional, easy carrying and removal♦ Terminals can be shut down via server.♦ DCS-3021 wireless discussion terminal could be connected to GONSIN30000I congress server and the corresponding wireless AP directly, the system could realize discussion and simultaneous interpretation function.* FS-FHSS( Frequency Selection -Frequency Hopping Spread Spectrum) technology:Frequency hopping communication technology is a common spread spectrum communication technology which is widely applied to various wireless communication fields. GonSIN has developed the unique FS-FHSS based on this communication technology. The new technology can monitor and select the undisturbed frequency band. FS-FHSS ensures the stability of the communication. It is applied to GonSIN wireless conference system, which implements the discussion, simultaneous interpretation, voting and others comprehensive conference application functions.Congress Terminal DCS-3021-WMain Features♦ It utilizes FS-FHSS frequency selecting-and-hopping technology;♦ High definition CD-level sound quality;♦ Consecutive battery use time (speak mode) ≥ 20 hours;♦ Highly resistant to mobile phone interference;♦ USB charging interface;♦ Pluggable microphone stem.Basic Functions♦ Battery capacity detection♦ Low voltage alarm and automatic shutdown;♦ ON/OFF button press-and-hold for terminal shutdown or startup;♦ Indicators to show working status;♦ Attendance: key press and supplementary registration;♦ Voice-activated microphone mode(optional)♦ Microphone modes: AUTO , FIFO and VOX(optional);♦ Built-in loudspeaker;♦ Supports automatic camera tracking, with preset panorama position; in support of SD and HD cameras;♦ Micro USB charging interface, detachable lithium batteries for centralized charging in the charging case;The chairman terminal has the exclusive functions:♦ The chairman terminal can be turned on free;♦ Priority button, and be able to shut down the speaking delegate terminal;Technical IndicatorsFrequency range2.4-2.5GHzModulation ModeFS-FHSS frequency selectingand-hopping technologyFrequency response30Hz~16KHzSensitivity-46dB±1dBWorking Voltage3.7VBattery capacity2600mAH Lithium ion batteryConsecutive battery use time( speak mode)≥20 hoursLoudspeaker2W/8ΩMicrophone stem length310MMDimension141×161×53 mmWeight0.5KgWorking temperature0~45°CStorage temperature-20~50°C