How much does this cost to the nearest dollar?

Kitchen Basics 101 24V 40VA Thermostat Doorbell Transformer, Power Supply Adapter Compatible with Nest, Ecobee, Sensi, Honeywell Thermostat, Nest Hello, Ring, Hardwire Door Chime
Product description Powers multiple thermostats doorbells. Replaces and upgrades underpowered transformer, offering plenty of power for single and multiple thermostats and doorbells at the same time Product specification Input 60 Hz, Output 24V 40VA Compatible with Nest, Ecobee, Honeywell, Sensi smart Thermostats, Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell and more Easy to install screw down and thread clamps to electrical box Risk free shopping This SupplyEdge product

Price is $16.00

Price: $15.91