Feature: 1. FINGER WEAR, EASY AND FAST: Wireless ring barcode scanner is small and light to wear on the finger, saving effort and worry 2. THREE SYSTEMS BLUETOOTH CONNECTION: 1D barcode scanner support HID‑SPP/HID‑BLE protocol, upgraded version supports 2.4G connection, no pairing required, scan and direct connection 3. OFFLINE STORAGE FUNCTION: You can scan without connecting the device, and the scanning gun will automatically record the scanned information. After connecting the device, can be uploaded without missing, and 5000 bar code can be saved 4. LOW POWER CONSUMPTION AND LONG STANDBY: The scanning gun has a rechargeable lithium battery and energy saving optimization circuit, which can work for 6 hours after full charge, can be standby, and can be set to sleep without working 5. EASY TO DISTINGUISH FOR LARGE WAREHOUSES: After the upgrade, the built in ID number of the scanning gun is added, and each scanning gun has a unique ID number, which has a very good advantage in the use of large warehouses 6. TRIPLE TIPS TO PREVENT MISSED SCANNING: Bar code scanner can set three scan success tips: indicator light, buzzer, vibrating motor, and multiple status tips: upload data success or failure; Bluetooth connection or disconnection; charge indication 7. APPLICABLE SCENARIO: Finger bar code reader is widely used in supermarkets, shopping malls, stores, medicine, library management, express delivery, clothing and other industries Specification: Item Type: Wireless Ring Barcode Scanner Operating System: For Android, for iOS, for WINDOWS Bluetooth: Bluetooth 2.0+EDR2.4-2.5G (ISM public band) Bluetooth Distance: 10meter (open space) Reminder Mode: Buzzer, vibrator, LED light Recognition Accuracy: 1D ≥5MIL Inventory Storage: 5000 Bar codes Data Communication: SPP/HID or SPP/BLE Memory: 16MB storage space, 200,000 data Operating Environment: Storage Temperature: -20℃ to 70℃, Humidity: 0-95℃ (no condensation) Data Mode: Implement upload mode and inventory mode Battery: 1 x Rechargeable lithium battery 800mah. Package List: 1 x Wireless Ring Barcode Scanner1 x USB Cable1 x Wireless Receiver1 x User Manual