Set Includes Car seat, base, newborn insert Features 11-position adjustable headrest with no-rethread harness: integrated harness adjusts with the headrest for a proper fit as your child grows Linear side-impact protection: integrated into the shell effectively reducing collision forces on the child in a side impact crash Lightweight convenience: At 9 lbs., the Cybex Aton G is one of the lightest infant car seats on the market In-shell air ventilation provides natural airflow to keep your child comfortable and cool in warmer temperatures Flame-resistant fabric: passes federal safety standards without the use of added fire-retardant chemicals Sensorsafe technology: Bluetooth enabled chest clip sends mobile app alerts if a child unbuckles the chest clip, if the back seat becomes too warm or too cold, and if the driver unintentionally leaves the child behind Xxl Upf 50+ sun canopy protects your child from the sun and elements Easy install: Safelock belt tensioner offers quick, simple, and secure belt installation Ergonomic release: One-handed base and stroller release at the back of the carrier shell Removable newborn insert supports babies from 4 to 11 lbs. Easy-in buckle keeps the harness buckle pointing forwards, making it easier to sit your child in the seat and buckle them up Faa compliant: Allows for infant carrier use during air travel without base Easy-to-clean machine-washable fabrics Travel system compatible: Connects to all Cybex strollers (sold separately) with included adapters to create a convenient travel systemSpecifications Suitable for children from 4 pounds to 35 pounds Compatible with the following (sold separately): Cybex strollers Manufacturer's 2-year limited warranty