FTA3 1. Desktop design 2. Built-in Lithium battery 3. USB client communication 4. 500 users, 3000 logs, optinal ... slim and elegant appearance.· built-in high-capacity Li-ion battery.· 6 shortcut key.· USB client. Technical Specification ·Fingerprint Capacity: ... -client · Standard Functions: USB Client, 5digits, 5V 1300mAH Li-ion battery, 6 Function key · Optional Functions: ID/Mifare · Display: LCD ...