1、Long Range Wireless Transmission Technology: 400 meters in the open air or 100 meters indoors. Easily connects to your laptop, PC, etc. without the need for a data cable. 2、Two Working Modes: Realtime upload mode or storage mode. Internal offline storage supports up to 100,000 barcodes in offline storage mode. Scan and store barcodes when away from the receiver, then update the data to your device when you return into wireless transmission range. 3、Two Scanning Modes: Press the trigger button to start scanning or switch to auto mode for quick scanning without pressing any buttons. 4、Dual Pairing Mode: One to one mode or multi pair mode. In one to one mode, one scanner sends barcodes to only one USB receiver. 5、Multi Pair Mode: Our laser automatic barcode scanner in multi pair mode, multiple scanners can transmit barcodes to the USB receiver and several people scan at the same time. 1 x Scanner1 x 2.4G Receiver1 x Setting Coding Portable Card1 x Charging Cable1 x Instruction Manual Item Type: Wireless Barcode ScannerModel: A51Material: ABS, TPUStorage Capacity: 16MBDecoding CPU: ARM32 bit CORTEXTransmission Mode: 433Mhz, wiredPrompt Mode: Buzzer, IndicatorOperating Current: 3.5V 40MAPower Supply: Li ion battery 18650 1500mAh (Built in carry)Charging Voltage: DC5VTrigger Mode: Key, continuous scanning, self sensingLight Source: 650nm visible laser diodeScanning Depth of Field: 30-600mm (different barcode range)Communication Distance: ≤ 400mStorage: 1751 bars (within 500 characters each) Working Time: 3 to 10 daysScanning Angle: Rotation ± 30°, tilt ± 45°, deficit tilt ± 60°Aiming: 617nm LED Illumination: 6500K LED Sensor: 640x480 CMOS Prompt Mode: Buzzer, indicator light Reading Accuracy: 1D≥4mil Decoding Rate: 300 times per second Printing Contrast: Not less than 20% Scanning Angle: Turn angle ± 360 °, tilt angle ± 60 °, declination angle ± 60 ° Ambient Light Anti Interference: 100000Lx Maximum, unreadable under strong sunlight Depth of Field 250Lx 13mil EAN13 40-260mm 4mil Code39 60-100mm 20mil QR 40-350mm 10mil PDF417 40-280mmKey Life: 100,000 timesLaser Life: 10,000 hoursDrop Test: 1.5mOperating Temperature: -20℃ to 50℃Storage Temperature: -30℃ to 60℃Humidity: 5% - 95% non condensingDecoding Capability: UPC or EAN, COGE128, CODE39, CODE39FULL SACII, CODE32, CODA BAR, INDUSTIAL or INTEREAVED 2 OF 5 CODE93, MSI, COE11, ISBN, ISSN, CHINA POST, GS1 DATA BAR, ETC