How much does this cost to the nearest dollar?

BroadLink RM4 Mini Smart Remote and Sensor Cable Set RM4 Mini S, Universal IR Remote Control Hub with Temperature Humidity Monitor USB Cable, Works with Alexa, Google Home, IFTTT
RM4 mini and Sensor Cable Set - This set comes with RM4 mini and HTS2 Sensor Accessory that integrates the functions of temperature and humidity sensor and power cable. Connect the sensor cable between the RM4 mini and USB adapter just like an ordinary USB cable, at the control panel of RM4 mini in BroadLink app, it will display temperature and humidity of the room where the sensor located. Set the triggers, such as turn on your air conditioner automatically when the temperature rises. High Compatibility Universal Remote - RM4 mini remote supports IR controlled devices, such as TV, Air Conditioner,

Price is $30.00

Price: $29.99