Scanner Black Portable Mini Wireless 2.4g Handheld Wearable Ring Barcode ScannerUK Plug Item Type: Scanner Material: ABS Model: R68 Colour: Black Reading Method: 750 x 480CMOS Scanning Method: Image Scanning Memory Capacity: 512K (A Total of 5000-10000 Barcode Data Can Be Stored) Accuracy: ≥5mil Printing Contrast: ≥30% Transmission: Wireless 2.4g Communication Distance: Approx.10m / 10.9yd Battery Type: Built in 320mAh Lithium Battery Charging Time: 2-3 Hours Use Times: 35000 Times Depth Angle: 34 Degrees V X 46 Degrees H (Vertical and Horizontal) Scanning Angle: 360°, ±65°, ±60° Scanning Performance (Scanning Depth of Field):Approx. EAN13(13mul) 50 -195mm / 2 - 7.7in Code39(5mil) 50 -105mm / 2 - 4.1in FDF417(6.67mil) 35 - 135mm / 1.4 - 5.3in Data Matrix (10mil) 35 -140mm / 1.4 - 5.5in QR Number (15mil) 30 -165mm / 1.2 - 6.5in Decoding Ability: 2D Airline 2 of 5, Aztec Number, Data Matrix, Grid Matrix Number, GS1 Composite Codes, Maxi Number, PDF417, QR Number 1D Codabar, Codablock A, Codablock F, Code11, Code32; Code39, Code93, Code128, EAN-13 and EAN-8, Full Ascii Code39, GS1 Data Bar, Industrial 2 of 5, Interleaved 2 of 5, ISBN / ISSN, Matrix 2 of 5, MSI / Plessey, UPC- A/UPC-E Prompt Mode: Buzzer, LED Scanning Speed (Horizontal Speed): 5in (12.7cm) Per Second