Got 2 h1b Visa want to shift to another employer due to its Visa Validity


In 2017 I filed two h1b visa with two different employers and Two petitions got approved recently. First h1 was approved on April 10 2018 and i got visa for 1 year and Second h1 got approved on May 1 2018 for 3 years.

I already started working my first h1 employer from April 10 2018 but now I’'m thinking to switch to my second H1 employer since my visa validity is 3years compared to the first one which is 1 year!!.So is there any possibilty to change the employer will it affect my h1b status ?