This gadget features anti-fading technology that releases subtle fragrance pulses for up to 60 days. It also has a fragrance boost on demand feature that activates through a touch-button and lasts for 45 minutes. Additionally, the device has a low-refill indicator that turns red when the refill is close to being empty. Price drops from $8 to $3.98. Also get $4 Walmart cash. Select free store pickup where available, otherwise shipping is free w/ Walmart+ or on orders $35+.