tender for supply of binoculars, torch andpa megaphones materials- 1 material : 2 binoculars(upclose g2 20x50 mm perro binoculars)• powerful 20x optical system for an image that is close-up to the action• large 50mm objective lenses with tremendous light gathering capability• high-quality everyday binoculars that are easy to take along on all life’s adventures• multi-coated optics increase light transmission for brighter, sharper images with high contrast• rugged and water-resistant rubber covered aluminum body• ergonomic finger ridges for a non-slip grip• includes a soft carrying case and neck strap 3 torchblaze synthetic resin and metal multi-functional emergency rechargeable led lantern| 4 lighting modes, 2200 mah battery with up to 4 hrs. of backup.special feature - multiple lighting modes, long lasting batteries, multi-functional, rechargeable, fast charging.product dimension - not bigger than 22.4d x 11.5w x 14.7 h centimeterspower source - must use large battery poweredlight source type - ledmaterial - metalitem weight - less than 400 grambrightness - fast charging 400 lumen voltage- 3.7 voltsabout this item - four lighting modes: comes with 4 different lighting modes i.e. high brightness headlamp, low brightness headlamp , the side lantern and sos flashlight just by pressing the button switchrechargeable battery: the emergency lantern must come with a high-quality rechargeable battery of 3.7v,2200 mah lithium-ion batterycharging & backup time: must take less than 5 hours to completely charge and give up to 4 hours of backup 4 pa megaphonespower output - 22w rated / 28w max.voice range - approx. 400m (siren 500m) in quiet surroundings, 28 watts shoulder sling & hand grip typepower source - 10 × aa pencil cells / car battery 12-14v dc / 11.1vamplifire must be used which provides. must have class -d amplifier which provides extremely high efficiency of power consumption resulting in extended battery life.must use larger voice coil and bigger magnet assembly for higher spl.built-in-siren. body must be abs, sturdy yet lightweight must use large clear sound, long range & efficientmicrophone with volume control & press-to-talk switch.can be used hand held as well as on shoulder.li-ion battery optionalmicrophone - unidirectionalinputs - dedicated microphonedimensions - horn ø220mm, l370 mmweight - 1.90kg (without cells)