The whistle emergency & utility essential was specced against the way this space is actually used, not against a brochure. At a glance Type: Whistle Power Source: Rechargeable Lumens: 800 lm Run Time: 8 Hours Price: ৳24.63 (offer ৳20.35) The part most missed Set up as a whistle-class unit, it does the job without asking you to improvise. In practice Storage: stows neatly, taking no more room than a loaf tin when out of service. Care: a rinse and dry cycle in the usual rhythm keeps it looking fresh. Daily duty: handles the regular routine without constant babysitting. Not the loudest option available — quietly the most sensible one.