Features Simple Operation: The wireless code scanning gun only needs to use a USB receiver and a USB cable. It can be used for 2.4GHz wireless connection and USB connection, and automatically matches the driver. Easy Scanning: The scanner uses a CCD sensor engine to support reading barcodes and QR code directly through the computer screen and mobile phone. Excellent Compatibility: Code scanning gun can be compatible with OS X, suitable for Android, for Windows 10, which makes your work more convenient. Better Design: Instant upload mode and storage mode. Internal offline storage can store up to 4,000 barcode data in the offline storage mode. When you stay away from the receiver, scan and store barcodes, and update the data as a device when you return the wireless range. Actual Use: The two -dimensional wireless code scanning gun allows it to be widely used in supermarkets, pharmacies, logistics, express delivery, retail stores and other usefulness. Specification: Item Type: Barcode Scanner Material: ABS Colour: Black Image Sensor: 640x480 CMOS Transmission Type: 2.4G Wireless Transmission Transmission Distance: Approx. 150m / 492.13ft in open space.  Pairing Capability: The base supports up to 4pcs scanner.  Storage Capacity: Up to 4,000 data can be stored. Battery: With built in battery.  Battery Type: 18650 Lithium Battery Battery Type: A Type Battery Capacity: 2200mAh Charging Time: About 5 hours.  Working Hours: 10-12 Hours Prompt Tones: The prompt sound BEEP is on.  Working Current: 120mA Standby Current: 80mA Operating Temperature: -20℃ - +50℃ Humidity: 5% - 95% (non condensing).  Package List: 1 x Barcode Scanner 1 x Data Cable 1 x USB Interface 1 x User Manual Note: Please do not scan the your eyes. Package List 1 x Barcode Scanner 1 x Data Cable 1 x USB Interface 1 x User Manual