NG815+ is a CDMA 1X wireless modules developed and manufactured by ZTE Corporation, based on Qualcomm 6025 chipset, support CDMA2000 protocol which can provide peak data rate of up to 153.6kbps without sacrificing voice capacity for data capability. Besides voice, high speed data and short message functions. Key Features - CDMA2000 1X Embedded Module - 153.6 kbps (forward and reverse) - Frequency band: 800MHz - Platform: Qualcomm 6025 - Data Interface: --RS232(TTL) and USB1.0 - Software Interface: AT Command Set - Basic Functions: Voice, Data, SMS, Fax - Embedded TCP/IP stack - OTASP, OTAPA - Zero IF architecture - Optional R-UIM support - Smaller Size: 41x28.5x4.3mm(including shielding) Ordering information MG815+ TF(MHz): 824~849 RF(MHz): 869~894 -More detail seen our website