1、Wearable Style: This ring barcode scanner features wearable ring design that allows you to wear it on finger, hands free experience greatly improves your working efficiency. 2、1D 2D QR Scanning: This wearable barcode reader with powerful decoding ability supports 1D, 2D and QR barcode scanning on paper, label or screen. 3、Rotatable Design: The scanning head of this finger barcode scanner can be easily rotated to 180 degrees, offering more convenience. 4、Widely Compatible: This finger barcode reader can be easily connected to laptop, PC, POS, smartphone, tablet, for IOS phone, for IOS tablet. Suitable for Win XP/7/8/10, for OS X Laptop, for Linux. 5、Instant Upload: This mini barcode reader supports instant upload and storage mode. Sound and vibration can be turned on or off. 1 x Ring Barcode Scanner1 x Receiver1 x User Manual1 x USB Cable Item Type: Ring Barcode ScannerMaterial: ABSOptical System: CCD SensorLight Source: Red Visible Light, 632nm Wavelength Resolution:1500Resolution: >4mil/ 0.1mm(PCS90%,CODE39)Decoding Speed: Up To 300 Times/SecondDepth Of Field: 70mm to 400mmReading Mode: Manual, Steady On, Sensing, Flashing for ReadingPrompt Way: LED Indicator Light, Buzzer, Vibration InductionTransmission Distance: 2.4G: 150 Meters / 164 Yards. BT 4.2: 50 Meters / 54.7 Yards(Open Environment)Battery Type: Lithium BatteryBattery Capacity :450mAh (Battery Included)Continuous Scanning Time: ≥ 2.5 HoursReading 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 BTOperating Temperature: 0℃ to 50℃Storage Temperature: Minus 40℃ to 70℃Operating Humidity: 5% To 95%(No Condensation)Drop Test: 1.5 Meters / 4.9ft