Interface: USB interface, rs232 or ps2 Driver: Plug and play, no driver required Transmission mode: wireless 2.4G, Bluetooth 4.0, wired Transmission distance: 100m barrier-free Battery capacity: 1200mAh Name: Model: C740 Type: Barcode Scanner Optical resolution: 300 x 300 Scanning elements type: CMOS Scanning width: A4 Scanning speed: 300 scans per second Interface type: USB Color depth: 16 bits Product Type: Barcode Scanner Novelty: Code reading mode: red light Light source type: red LED 625nm+/-10nm Accuracy: 4 million Scanning field depth: 10-500 mm Decoding error rate: less than 1/500 million Supported codes: One-dimensional barcode colour:Black+green Material:ABS size:124 x 41 x 25mm Package Contents: 4 x C740 Scanner 4 x Receiver 4 x Manual 4 x Data cable 4 x Neck strap 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.