Features: 1.Wearable Ring Design: The design of the ring scanner is very special and portable. This mini barcode scanner allows you to wear it on the left or right with your fingers, increasing your satisfaction and comfort. 2.4g Wireless Connection: The wireless transmission distance of our wireless barcode scanner's BT barcode scanner can attain 10 meters, which can increase productivity by 10%?30% compared with ordinary wired handheld scanners. 3.Compatible Devices: The barcode scanner includes a USB receiver, which can support for Windows XP, Win 7, Win 8/10 system PCs, for Android devices, and for IOS devices. 4.Built in Flash Memory: Built in 512K flash memory, which can store 5000?10000 bar number data. 5.Easy to Use: You can directly scan barcodes to tablets and smartphones without installing any software. specification: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 PackageList: 1 x Scanner 1 x Receiver 1 x Plug 1 x Data Line 1 x Chinese and EnglishUser Manual