Detachable stainless steel filter effectively filters every cup of water, detachable design allows for convenient cleaning Wide opening for easy pouring and cleaning, Frequency: 5 Hz Concealed heating element and cord winder Steam sensor, dry boiling and overheating prevention, Cord length - .75 m One touch spring lid helps to avoid scalding PTC technology for keep warm heating with no reboiling 36 degree cordless pirouette base, for easier handling