USB interface, simple installation. You can setting your scanner from the PC keyboard or scanning. Reading or Not-Reading indicate by LED light and buzzer. IP54 industrial level ,waterproof , dustproof . Manual trigger/continuous scan/auto-sense(for choice),very comfortable operating. Quick Decoding Capability with Fuzzy Information Processing System Support Remote software update Ergonomic design offer comfortable operation and enhance the working efficiency Interface: TTL/RS232/USB/KBW : 650 (visible laser) scan model: single line Bi-directional scan speed:300 line/sec Color: black resolution: 3.3mil width of scan: 30mmscanner window,220mm200mm depth of scan: 0-250mm(0.33mm.PCS 90%) decode capacity: /,/(include complement code), Code128,UCC/EAN128,Code39,Code 39Full ASCII,Code128Full ASCII,Codabar,Interleaved 2 of 5,Code93,,Code11,,ISSN,china post/code,etc prompt: buzzer indicator scan model: handheld / auto-sense size: 156*64*91mm material: ABS Package Include: 1* scanner 1* bracket 1* USB power cable 1* manual Only the above package content, other are not included. Note: Light 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.