Feature 1WEARABLE SCANNER: The finger barcode scanner is convenient to wear, widely used in supermarket, shopping mall, book management, express delivery, clothing field, etc. 2LARGE STORAGE: The finger ring scanner will automatically record the scanned information, and after connecting to the device, it can upload data and save 5000 barcodes. 3BUILT IN BATTERY: The barcode scanner has 300mAh battery, can continuously scan around 1500 barcodes when fully charged, can be set to not work and enter a sleep state. 4MULTIPLE FUNCTION: The barcode scanner has added built in ID number setting for easy identification in large warehouse, with buzzer, vibrator, and LED light reminder function. 5COMPATIBLE SYSTEM: This Bluetooth barcode scanner supports for iOS, for Windows, and for Android system, with 10 meter open space comm range, with good compatibility.Item Type: Ring Barcode ScannerOperating System: For Android, for IOS, for WindowsBluetooth: Bluetooth 2.0+EDR2.4-2.5G (ISM public frequency band)Bluetooth Distance: Approx. 10 meter / 32.8ft (open space)Reminder Method: Buzzer, Vibrator, LED LightRecognition Accuracy: 2D 7.5MIL, 1D 5MILInventory Storage: 5000 BarcodesMemory: 16MB Storage Space, 200000 DataUse Environment: Storage Temperature -20-70, Humidity 0-95 (no condensation)Data Mode: Implement upload mode and inventory modeBattery: 1 x 300mAh Rechargeable Lithium Battery (built in battery) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Barcode Scanner1 x USB Cable1 x Wireless Receiver1 x User Manual