Feature: 1. WEARABLE SCANNER: The finger barcode scanner is convenient to wear, widely used in supermarket, shopping mall, book management, express delivery, clothing field, etc. 2. LARGE 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. 3. BUILT 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. 4. MULTIPLE 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. 5. COMPATIBLE SYSTEM: This Bluetooth barcode scanner supports for iOS, for Windows, and for Android system, with 10 meter open space comm range, with good compatibility. Specification: Item Type: Ring Barcode Scanner Operating System: For Android, for IOS, for Windows Bluetooth: 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 Light Recognition Accuracy: 2D ≥7.5MIL, 1D ≥5MIL Inventory Storage: 5000 Barcodes Memory: 16MB Storage Space, 200000 Data Use Environment: Storage Temperature -20-70℃, Humidity 0-95 (no condensation) Data Mode: Implement upload mode and inventory mode Battery: 1 x 300mAh Rechargeable Lithium Battery (built in battery). Package List: 1 x Barcode Scanner1 x USB Cable1 x Wireless Receiver1 x User Manual