Features Automatic Sensing and Scanning: When adjusted to sensor scanning mode, scanning is activated when the sensor detects a change in ambient brightness. Both sensor scanning mode and continuous scanning mode can supports easy operation without manually press 2.4GHz Wireless Design: Plug and play, easy to install mini USB receiver, which is included barcode scanner holder. The wireless transmission distance can get to 80 meters. The USB receiver automatically pairs without the need to install any software or Fast and Accurate Reading: The 32 bit CPU has strong decoding ability, with a speed of up to 300/sec. There are two working modes of instant upload mode and storage mode. Internal offline storage supports up to 100000 barcodes in offline storage mode. Sc Vibration and Sound Alarm: Equipped with two modes of vibration and sound. When you need a quiet working environment, simply change the setting to vibration mode. In addition, when the scan is successful, you will receive a vibration alarm. Rechargeable Battery: Integrated 1500mAh lithium ion battery, fully charged and able to stand by for more than six months. Scan barcode continuously for more than one week. It can be charged through any USB 2.0 port. Specification: Item Type: Barcode Scanner Material: ABS Battery: 1 x polymer battery with 1500mAh capacity, shipped with built in battery.  Image Sensor: 640 x 480 CMOS Light Source: 6500K white light compensation, red light positioning.  Perspective: H 51.1° x V 40.4°  1D Decodeable System: For all device 2D Decodable: For Composite, for Data Code, for HANXIN, Maxicode, for MicroPDF417, for Micro QR code, for PDF417, for QR code, for Aztec code, for DOT CODE Scanning Range: Test Barcode: 6.6mil code39 Minimum range: Approx. 4cm / 1.57in Maximum range: Approx. 8cm / 3.15in Test Barcode: UPC-13 mil Minimum range: Approx. 3cm / 1.18in Maximum range: Approx. 22cm / 8.66in Test Barcode: 20 mil code39 Minimum range: Approx. 7cm / 2.76in Maximum range: Approx. 33cm / 12.99in Test Barcode: 20 mil QR Code Minimum range: Approx. 3cm / 1.18in Maximum range: Approx. 18cm / 7.09in System compatibility: For Linux, for Android, for Windows XP, 7, 8, 10, for OS X.  Package List: 1 x Barcode Scanner 1 x Base 1 x USB Cable 1 x User Manual Package List 1 x Barcode Scanner 1 x Base 1 x USB Cable 1 x User Manual