Features: 1.WEARABLE DESIGN: Barcode scanner is designed with a wearable ring that can be worn on your finger, allowing you to scan barcode data and record it in a timely manner, greatly freeing your hands and greatly improving your work efficiency. Supports two handed wearing. 2.1D BARCODE SCANNER: Wireless ring barcode scanner has excellent 1D barcode decoding ability, fast scanning speed, and can easily capture most 1D codes, such as UPC A, EAN 13, EAN 128, ISBN, code 39, code 128, Codabar, etc. 3.MULTIPLE CONNECTION MODES: Finger bar code reader supports 3 connection modes, 2.4G wireless and Bluetooth and USB wired, wireless design can take it anywhere to work, suitable for organizing and cataloging barcodes. 4.APPLICABLE SYSTEMS: Ring barcode scanner easily connects to various devices such as laptops, PCs, POS, smartphones, tablets, for iPhone and computers, and works perfectly with for Windows xp 7 8 10, for OS X, for Linux and other common systems. 5.EASY TO OPERATE: Bluetooth barcode scanner supports two usage modes, instant upload and storage mode, and supports turning sound and vibration on or off. The buttons are designed for comfort and the scanning head rotates 180 degrees. specification:Item Type: Wireless Ring Barcode Scanner Material: ABS Optical System: CCD Sensor Light Source: Visible Red Light, Wavelength 632nm Resolution: 1500 Resolution: >4mil/0.1mm(PCS90%,CODE 39) Decoding Speed: Up to 300 Times/sec Reading Depth of Field: 70?400mm/2.8-15.7in Reading Mode: Manual, Constant Light, Induction, Flashing Reading Prompt Mode: LED Indicator, Boom, Vibration Induction Transmission Distance: 2.4G: 150 Meters/164yd; Bluetooth 4.2: 50 Meters/54.7yd (Open Environment) Storage Capacity: 2M (About 100000 13bit Commodity Code) Battery Type: Lithium Battery Battery Capacity: 400mAh (Included) Continuous Scanning Time: 2.5 Hours Reading Code System: UPC A, UPC E, EAN 8, EAN 13, ISSN, ISBN, Code 128, GS1 128, Code 39, Code 93, Code 32,Code 11, UCC/EAN128, Interleaved 2 of 5, Industrial 2 of 5, Codabar (NW 7), MSI Plessey, RSS, China Post, Etc. Communication Mode: Wireless 2.4G, Wireless Bluetooth Operating Temperature: 0 to 50 Storage Temperature: ?40 to 70 Working Humidity: 5?95% (no Condensation) Drop Test: 1.5m/1.6yd PackageList: 1 x BarcodeScanner 1 x 2.4GReceiver 1 x InstructionManual 1 x DataCable