Cheap And Discounts Avada Tech STEVAL-FKI868V2 Sub-GHz Development Tools Sub-1GHz (860-940 MHz) transceiver development kit based on S2-LP Wholesale. Buy Directly From Merchant AvadaTech Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.