Fangrui Product Details 1. Netum 2d Mini Wireless Bluetooth Ring Scanner 2. Wireless Bluetooth Reception, Support 2.0 3.0 4.0 Bluetooth Transmission 3. Intelligent Anti-fall, Small And Flexible, With Built-in Anti-vibration Function 4. Fast Recording, No Stringing, Sensitive Response, Stable Transmission, Low Bit Error Rate 5. Comes With A Rotation Of 180 Degrees, Easy To Read The Code, Can Not Be Rotated 360 Degrees 6. Widely Used In Supermarkets, Shopping Malls, Medicine, Library Management, Express Delivery, Etc. 7. The Use Of High-resilient Buttons, Energy-saving And Labor-saving, Non-slip Design 8. Features: Stable Transmission, Scan Screen, Scan Code Collection, Fast And Sensitive 9. Power Supply Mode: Usb Power Supply 10. Interface Type: Usb Interface 11. Resolution: 3mil 12. Battery Capacity: 2000mah 13. Scanning Rate: 500sec 14. Size: 50x45x30mm 15. Weight: 150g