USB 2.0 Full Speed Interface Power Supply: Battery-powered (Lithium-ion battery rechargeable via Micro-USB port) USB-powered (via PC-connected mode) Smart Card Reader: Contact Interface: Supports ISO 7816 Class A, B, and C (5 V, 3 V, 1.8 V) cards Supports microprocessor cards with T=0 or T=1 protocols Supports various memory cards Supports PPS (Protocol and Parameter Selection) Features short-circuit protection Supports AES-128 encryption algorithm Built-in Peripherals: Three monochrome LEDs Application Programming Interface (API): Supports PC/SC Supports CT-API (via wrapper on top of PC/SC) Features USB firmware upgradability Supports Android™ 4.3 and above Supports iOS 8.0 and above The product contains battery accessories, Please keep the product out of reach of children to avoid accidental ingestion! Color: As Shown Material: plastic Package Contents: 1*Card Reader Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.