| | 1. Control & Power Supply Unit with Digital MP3 Recorder + USB and Digital Acoustic Feedback Suppression | | | 2. Chairman Unit c/w 2,5m Cables and 39cm Microphone | | | 3. Delegate Unit c/w 2,5m Cables and 39cm Microphone | | | | 4. Extention Cable, 2m | | | 5. Extention Cable, 5m | | | | 6. Extention Cable, 10m | | | 7. Extention Cable, 20m | | |

| | 1. CCS 900S Ultro Control & Power Supply Unit | | | 1. CCS 900S Ultro Chairman Unit c/w 2,5m Cables | | | and 39cm Microphone | | | | 3. CCS 900S Ultro Delegate Unit c/w 2,5m Cables | | | and 39cm Microphone | | | | 2. Extention Cable, 5m | | | | 2. Extention Cable, 10m | | |

1x 0.14" (3.5mm) stereo headphone socket | 100 to 240 VAC ± 10% | mute (50dB att.) + 10 steps of 1.9dB

Audio | Audio features : 32K sampling rate, HD broadband audio, full-duplex | USB protocol : Support UAC2.0 | AEC: Echo Cancellation, Using AI algorithm to eliminate echo | ANS : AI noise reduction, eliminate all kinds of stationary and non-stationary interference noise, maximum noise suppression: 90dB | AGC : Automatic Gain Control,Intelligent gain adjustment within 10 meters, clear pickup | Reverberation suppression : Using AI algorithm to reduce reverberation | Microphone | Microphone type : Omnidirectional microphone | Microphone array : Built-in 6 omnidirectional microphones (main mic 4+2* extension Mic 1) | Pickup distance : 6m without extension microphones | Frequency response : 50Hz~16kHz | SNR : 65dB | Sensitivity : -35dBFS 94dB SPL @1KHz | Interface | Type C interface : 1 × Type C interface, used to connect the audio input and output of PC and other equipment;2 × Type C interface for connecting to the extension mic | Power supply : DC12V/3A, external power supply to power the microphone device | Buttons : Touch button (mute button with light indicator) | Speaker | Speaker type : Full frequency speaker | Power : 15W | Frequency Range : 50Hz ~ 20kHz | Volume : 90dBA @1m | THD : <3%

S-microphone system records distant or quiet sounds clearly | 4 GB internal memory, expandable to 32GB with micro SD | Focus and Wide-Stereo recording captures the voices you want to hear | Auto voice recording reduces background noise | Built-in USB connector makes transferring files easy | Record and listen in Linear PCM or MP3 formats | Extra-long battery life for extended recording

Conference Phone | Non-expandable | with Display | Integrated keypad

Conference Phone | Expandable | with Display | Integrated keypad

Skype for Business/O365/Lync Edition Polycom Trio 8500 Conference Phone with Polycom UCS SfB License | Built-in Bluetooth | 802.3af PoE | Include 7.6m/25ft Ethernet Cable | Conference Phone PolyCom TRIO 8500 Partner Premier | Power Kit for Poly (Polycom) Trio 8500 / TC8 Touch Control | Pair of microphones that extend the microphone pick up range of your RealPresence Trio 8800 conference unit | Includes (2) 2.1m/7ft. extension cables