Specification: Model: R35 Material: Tempered Glass, PC Size: 86 x 86 x 42mm/3.4 x 3.4 x 1.7in Weight: 150g/5.3oz Color: Black Card Reader Type: Em Card Or Mifare Card Barcode Type: Qr, One/Two-Dimensional Code Communication Method: Wiegand/USB/RSs232/TCP-IP/RS485 Decoding Mode: Image Decoding Reading Direction (Bar Code): Angle 45 With The Lens As The Center Point Scan Code Characteristics: Automatic Induction, Buzzer Prompt Operating Voltage: 8-12V Working Current: 800mA Reading Distance(Card): 3~6cm Reading Speed: 200ms Reading Distance(Qr Code): 0-20cm Operating System: WindowsXP/7/8/10), Linux Working Temperature: -20 C -70 C Working Humidity: 10%~90% Package Size: 14 x 12 x 7.5cm/5.5 x 4.7 x 3in Package Weight: 380g/13.4oz Packing List: 1 x Barcode Scanner 1 x USB Cable