bids are invited for purchase of various electronic items for establishing a new training hall at district police office, rohtak---1 chairman unit with the minimum features of microphone -63dbv/µbar (7.5mv/pa), current consumption < 50ma max., mic auto switch-off time 75 seconds approx., input line, output line, headphone, speaker max input 300mw, controls priority switch, talk switch, speaker volume control, headphone volume control etc. chairman unit has a talk switch with led. it also has a priority switch with led. when priority switch is pressed, a chime tone is generated to seek attention and mute the active delegate microphones etc. complete in all respect upto the entire satisfaction of the in charge of the work. make ahuja/bosch/beyerdynamic 1 each 2 50 watts central mixer amplifier with the minimum features of line output 1 17.5v dc/3a max.; -34dbv (20mv), line output 2 17.5v dc/3a max.; -34dbv (20mv), power output 50w rms at 2% thd, 90w max., inputs 3×mic 0.65mv/4.7kω, 1×aux 100mv/470kω, frequency response 60-14,000hz (± 3db), s/n ratio > 60db, tone controls bass: -10db at 100hz, treble: -10db at 10khz, preamp output 200mv/600ω, line output 1v/1kω, send output 200mv/600ω, return input 200mv/10kω, speaker output 4ω, 8ω, 16ω, 70v & 100v, power requirement ac: 220-240v, 50/60hz, dc: 24v (2×12v car battery), power consumption 250va, protections ac fuse 1×3 amp , dc fuse 2×10 amp. make ahuja/bosch/beyerdynamic 1 each 3 22u equipment rack for av products with cable manager, power extension board and cooling exhaust fan. make: comrack/rackom/president 1 each 4 43 uhd display with the minimum features of display resolution 3840x2160, brightness (typ.) 200 - 300 nit, contrast ratio 4700:1, operation hour 16/7, power supply ac 100 - 240 v, 50/60 hz, bezel width (mm) w/w : 5.5 (t/s) 11.1 (bottom), 3 bezel-less, operating system tizen™, wifi 5, bluetooth supported, hdmi x 3, usb (1), 2ch (10w+10w) make: samsung/panasonic/sony 3 nos. 5 2 ton, 3 star split inverter air conditioner with the minimum features of support refrigerant r32; pm 0.1 filter; converti7; 2-way; powerful mode; hidden temperature display; shield blu+; superdyma odu; sfo (145~285 v); voltage (v-ac) 230, op. temp: 16~52ᴼc; twin rotary make:- panasonic/o-general/lloyd 4 each 6 65 uhd display with the minimum features of display resolution 3840x2160, brightness (typ.) 200 - 300 nit, contrast ratio 1200:1, operation hour 16/7, power supply ac 100 - 240 v, 50/60 hz, 3 bezel-less, operating temperature 0℃~ 40℃, display colours 6.7m(true display), operating system tizen etc. make: - samsung/panasonic/sony total quantity : 11