Cheap And Discounts Keyestudio 5V ReSpeaker 2-Mic Pi HAT V1.0 Expansion Board For Raspberry Pi 4B +CE Compliant W/B+/3B+/3B Wholesale. Buy Directly From Merchant keyestudio Official Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.