VTIN TECHNOLOGY Co., Limited Sep.09, 2020 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID : 2AIL4-BH438A Model Number: BH438A, BH438B, BH438C To Whom It May Concern:
We, The VTIN TECHNOLOGY Co., Limited hereby declare that the model : BH438B, BH438C is identical with the model : BH438A, except the model name. Except for the different above, no other modification is performed. Sincerely, Signature:
VTIN TECHNOLOGY Co., Limited Contact person: Derric Bai