we havetested and foundthat most repellers inmarket notefficiently work with manycustomer complains,we discovered competitor’sultrasonic repeller max only 85Khz,single wave,onlysweep frequency,but increasing toofastthat1 second increasing2000 or 3000 hz,also nothasfixed frequency；Ourrepellerimproved to 24- 100Khz(maxoutput),refined slow increasingfrequency 0.5 secondincreasing 500HZ,double wave（1repeller=competitor‘s2 repeller working）,sweep frequency,alsohasspecial 4 fixed frequency to break insect’s adaptability ofsweepfrequency, irritating insects hearingandnerve system,break theirPhysiological period and the breeding season,keep life safe withoutun-wanted creatures!
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