Click or scroll to zoom Tap or pinch to zoom Click or scroll to zoom Tap or pinch to zoom Yeastar 3G Module WCDMA 850/1900 MHz (3G) by Yeastar Sold out $235.16 SKU 3G_Module 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out 1 WCDMA Channel. 1 Channel for WCDMA Voice Calls. Frequency: 900/2100 MHz, 850/2100 MHz, 850/1900 MHz.