Clear uses government-approved, advanced-biometric technology (fingerprints and iris recognition) to verify member identities. See below photo for a look at the Clear Kiosk. These member-only kiosks are expected to launch at McCarran in mid-August. For an annual membership fee of $179 (add $50 annually for a partner), Clear members will get through security screening checkpoints in typically less than five minutes. There are currently more than 300,000 Clear members nationwide who have used its system nearly two million times for travel.
Following the article link below more information about Clear: