BLU Products, Inc. Add: 10814 NW 33rd St # 100 Doral, FL 33172, Doral, Florida, United States Tel: 3057157171 Fax: 3054368819 Email: zwei@ctasiasz.com Attestation Letter 2019-12-05 Dear Sir or Madam, The Main chip, model: SR3593A, installed in our product Mobile phone, model: C2, FCC ID: YHLBOLDC2; this chip supports LTE function, but for marketing purpose, this chip only supports LTE band 2/4/5/12/17, not support other LTE bands. The other LTE bands was disabled to use by manufacture in the software, the end user has no capability to activate it. Sincerely Yours, Signature:
Wei Zeng Senior Manager