How much does this cost to the nearest dollar?

Kidde Smoke & Carbon Monoxide Detector with Voice Alerts, Battery Powered, Combination Smoke & CO Alarm, 4 Pack
The Kidde Smoke & Carbon Monoxide Detector with Voice Alerts, Battery Powered, Combination Smoke & CO Alarm, model KN-COSM-BA, provides two fire safety detectors in one unit through the use of ionization sensing technology that senses invisible fire particles, while an electrochemical sensor detects carbon monoxide. When a smoke, fire, or carbon monoxide event occurs, the Kidde fire alarm warns with an alarm sound, flashing LEDs, and voice alerts. For smoke detection, the alarm will sound with the announcement, Fire! Fire! and a red LED will flash in unison with the voice alarm. For carbon monoxide detection, the alarm will sound with the

Price is $155.00
Price: $155