NEW UNOPENED - Evenflo Revolve 180 Litemax NXT Infant Car Seat

I received this as a gift, but I already have two car seats that go with my twin stroller. Never opened, brand new from the manufacturer. Rotational Infant Car Seat with SensorySoothe. Regular price on website is $600 before tax. Evenflo Revolve 180 Litemax NXT infant car seat with SensorSoothe technology. Supports 3.22-157.29 lb and 1.4-10 kg (40-74 cm). Includes locking belt-tensioning system for secure installation.