bids are invited for 1 projector: brightness ( ansi lumens ) 5000; native resolution : wuxga ( 1920x1200 ) ; native aspect ratio: 16:10 ; contrast ratio ( fofo ) : 3000000:1; display color: 30 bits ( 1, 07 billion colors ) , light source: laser;light source life: 20000 hrs 2 motorised screen 13x8 feet 3 ceiling mounting kit 4 hdmi cable 30 meter 5 speaker 12-inch powered pa speaker with bluetooth; max spl: 127 db; power: 1, 300w peak / 650w rms 6 mixer :line input impedance 20kω balanced / 10kω unbalanced; frequency response 20hz-20khz ( +0 / -1db ) ; total harmonic distortion < 0.02%; mic ein ( equivalent input noise ) -128db 7 pa wireless microphone connector type xlr; connectivity technology xlr ;item weight 2400 grams ;product dimensions 24 x 28 x 30 cm; 2.4 kilograms 8 p.a wireless microphone :high quality uhf band frequency duet wireless microphone system. 80 selectable uhf annels. back light display for frequency identification individual channel output with level control & mix output two microphones can be used at the same time. easy setup of the system with infra-red 9 pa microphone dynamic cardioid live microphone, equipped with the most popular capsule, provides excellent performance for lead and backup vocals, and instrument miking at a moderate price and is comparable in sound quality 10 cable xlr ( m ) to xlr ( f ) 30ft 11 sub 10 ( sub woofer ) 12 delivery and installation charges 13 hd video conference camera with intelligent noise reduction. it is compatible with many popular applications. the multiple installation options makes it a perfect conference solution. 2.07 million pixel panasonic cmos sensor 1080p high-definition image auto focus 12x optical zoom+16x digital zoom dual stream output ( any two of yuy2, mjpeg, h.264 ) two power supply modes ( usb interface or built-in power supply ) adaptive white balance, intelligent noise reduction for low-light images with a signal-to-noise ratio of up to 55db compatible with multiple system platforms suitable for mainstream video conferencing software support horizontal 340° and vertical 120° pan / tilt rotation, support to set up to 255 pan / tilt preset positions 2 years warranty support 14 conference system with extension unit expanded mics and speaker 48k wide-band acoustic echo cancellation with hd-voice, dynamic noise suppression, automatic gain control, and intelligent microphone mixing best for conference room within 25 at and supports within 10 attendees built-in 4 high-sensitivity microphones 360-degree pick-up, best gather cover 4m, and the maximum can support 5-8m support 2.4g wireless transmission, doesnt need any cable connection. achieve speakerphone conference anywhere and any place. support usb voip and suitable for pc, video system, uc communication support line in / out port that allows for external devices to connect to the conference phone. achieving efficient video and web conferencing support 3.5mm jack for mobile phone call. collaboration: bridge usb voip call and mobile call together very conveniently speaker volume up to 85db, 16 levels adjustable built-in chargeable battery : 5200ma, talk time 10 hours and stand-by time 90 days. technical parameter audio technology acoustic echo cancellation ( aec ) >65db echo length cancellation:500ms bidirectional noise compression ( nc ) : <18db automatic direction finding technology of intelligent microphone ( emi ) automatic gain control ( agc ) audio microphone frequency response:100hz-22khz speaker frequency response:100hz-22khz microphone sound-pickup radius: 4 meters, 360 degrees full rang speaker volume: 85db at the most network interface one type-b , one rj45 interface one line in / out port compatibility windows / andriod / i0s / linux 15 smart tv screen size ( cm ) 139.7cm ( 55 ) resolution 3840 x 2160 ( uhd ) backlight unit type direct brightness 400 dynamic contrast ratio ( dynamic mci ( hz ) ) 1, 000, 000:1 static ( panel ) contrast ratio 1300:1 response time ( g to g, ms ) 14 refresh rate 60hz video hdr ( 10 pro / hlg ) yes / yes audio speaker ( sound output ) 10w + 10w lg sound sync yes ( required bluetooth ) broadcasting system digital ( terrestrial, cable, satellite ) dvb-t2 / c total quantity : 23