10pcs CC2530 ZigBee Mudule 2.4GHz 20dBm 800m Mesh Networking E18-MS1PA2-PCB CDSENET Wireless Transceiver Receiver PCB Antenna WholesaleBuy Directly From CDSENET Official Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.