Model Differences Cover Letter

FCC ID: SS4EF501X

Cover Letter(s)

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FCCID_4183440

BLUEBIRD INC. (Dogok-dong, SEI Tower 13,14) 39, Eonjuro30-gil, Gangnam-gu, Seoul South Korea ID letter Date: Feb 20, 2019 FCC ID: SS4EF501X To Whom It May Concern: Basic model: EF501 Family model: EF501R There is no difference of electrical performance and circuit performance. The difference between the EF501 and the EF501R is that the EF501R model has added to the enclosure (rubber bumper). Sincerely, Yongsik Jang QA Senior Manager


Document Created: 2019-02-20 16:02:25
Document Modified: 2019-02-20 16:02:25
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