The JOAN R40 wearable barcode scanner is very easy to wear and use, it enables mobile workers to scan barcodes while moving boxes in the warehouse, both hands are free to complete more operation. It can connect with iOS, Windows, and Android devices through wireless Bluetooth technology.1. Ergonomic light weight, non-slip design, and support 180°rotation2. 380 mAh lithium polymer battery, 6 hours of sustainable use3. Minimum resolution reaches 4 mil 4. Bluetooth is compatible with 4.0 standard, working range up to 30 meters5. Support offline storage for 3000 barcodes6. Compatible with Windows, Android, iOS devices (such as computers, smartphones, tablets, etc…)