Purchase Links NamePurchase LinkQuantityCurrent Price Echo DotOne per room$49.99 AWS IoT Enterprise ButtonOne per user$19.99 Kasa Smart WiFi plugOne per room$16.99 Raspberry Pi computerOne per room$54.99 Raspberry Pi MicroSD cardOne per Raspberry Pi$12.93 Optional Audio Cable (4ft)One, if none already available. Check required length.$5.49 Optional Audio Cable (8ft) Optional Audio Cable (20ft) Optional 7 inch screen$69.99 Optional 10 inch screen$105.99 Optional wireless keyboard$13.99 Total (for a one location setup)$154.40 + tax