Model Number: HDM1004 Brand Name: HEAD WEBLINK Key Specifications/Special Features: Frequency bands.4G LTE modem1.HDM1004G-C. LTE-FDD: B1,3,7,8 LTE-TDD: B38,39,40,41
WCDMA: 900/2100MHz
TDSCDMA: band A and band B
GSM: 900/1800MHz

2.HDM1004G-E.
LTE-FDD: B1,3,7,8,20
LTE-TDD: B38,40
WCDMA: 900/2100MHz
GSM: 900/1800MHz

3.HDM1004G-A.
LTE-FDD: B2,4,5,17
WCDMA: 850/1900MHz
4.HDM1004G-JC.
LTE-FDD: B1, B3, B8, B18, B19
LTE TDD: B41
WCDMA: B1, B6, B8
GSM: 900/1800MHz

5.HDM1004G-JE.
LTE-FDD: B1, B8
WCDMA: B1, B8
GSM: 900/1800MHz