How much does this cost to the nearest dollar?

3 Way Smart Dimmer Switch by Martin Jerry | Black Touch Trailing Edge 4 Way Smart Dimmer Switch, SmartLife App, Compatible with Alexa as WiFi Light Switch Dimmer, Works with Google Home
3 way smart dimmer switch 4 way smart dimmer switch 3-Way 4-Way WiFi Switch Dimmer Works with traditional 3-way and 4-way switches. Two WiFi dimmer cannot work in the same circuit. In both 3-way / 4-way circuit, just replace the live side 3-way standard switch by this wifi switch. Lights should be Dimmable LED Bulb (150W) LED Dimmer switch This smart switch implements the Trailing Edge dimmer solution. It is better than other dimmer switches for LED lights. It will bring

Price is $39.00
Price: $38.99