The Horizn Studios M5 Smart Cabin Luggage sets you up to overcome any potential travel mishaps. You’ve probably been stranded in an airport for much longer than expected. This in-cabin suitcase has a removable smart charger, so you won’t have to deal with a low battery. A major benefit of this smart luggage is that all airlines approve it for in-cabin use. Additionally, this airline-approved device won’t force you to part with it before security. Or worse, have it taken..