Feature: 1. Can interpret all kinds of 1D/2D codes, including direct 2D codes. 2. Supports Android/iOS systems and can replace PDA or mobile phone scanning. 3. Stores up to 512,000 characters in offline/inventory storage mode with Bluetooth connection for easy and fast data transfer. 4. Wireless Bluetooth range of up to 50-100 meters. 5. This barcode scanner is designed to attach to the back of your phone via a clip. With simple Bluetooth pairing, you can scan barcodes and view data or upload quantities directly on your phone simultaneously, offering convenient operation. 6. Equipped with two scanning buttons, allowing you to choose the most comfortable button for scanning and enhancing user experience. 7. Can also be used as a standard Bluetooth scanner with phones or computers via Bluetooth connection. 8. Built-in 3000mAh battery provides continuous operation for 6-10 hours with a charging time of approximately 3 hours. Warm Tips: 1. When using this back clip barcode scanner, if your phone case is thick or rigid, it is recommended to remove the case before attaching the scanner. Failure to do so may result in an insecure fit, potentially causing the phone to fall and get damaged. Do not forcefully pull the retractable rod or the four clips, as this may damage the device. 2. Many customers ask how to turn off the scanner. By default, to conserve battery power, the scanner automatically enters sleep mode after 5 minutes of inactivity. You can adjust the sleep interval to "10 minutes," "30 minutes," or "Never Sleep" through settings. 3. If you encounter any issues with the scanner, please contact customer support. Color: Black Material: Plastic Note: Due to variations in product batches, the appearance may differ slightly, which does not affect functionality. Package Contents: 1 x Barcode Scanner 1 x Charging Cable Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.