Differentiation
             ◆ Durability: heavy duty design 
                10K times pull test
             ◆ Night mode with ‘Cold Air Bank’ built inside
                ZERO noise during sleeping time
             ◆ Super low energy consumption 
                0.18kW.h/24h (<1kW.h/24h for 5-day operation)
             ◆ Quiet operation，

                Working Noise: 37 dBA v.s. industry standard 43 dBA 

             ◆ Interior LED light for better display