TaoTronics Wireless Cordless Handheld Barcode Bar Code Scanner Reader Kit - Black, 32-bit Decoder, Anti-interference, Mobile Moveable, Optical Laser, USB Optional, Long-Range Stonger Decode Capability - Upgrade to 32-bit Decoder. Plug-and-play allow novice and advanced users to process items more rapidly and spend less time keying in data Batch mode operation(Good-read off/Auto-detection/Press/Click/Continuous Scanner Mode). Increases application design flexibility to better meet your specific needs Withstands 5 ft./1.5 m drops to concrete .Protects against downtime from breakage due to everyday drops. Communication Distance support up to 200 meters Powered through adapter or USB cable (Docking Station). Low power consumption and automatically turn off within set time. Scanner type is bi-directional, support one to multi unit or multi unit to one Customer Service: The User Manual contains normal setup codes. If you need any other setup codes like enabling special codes or adding prefix or suffix, please kindly contact us. If you encounter any quality problems, please contact support@taotronics first and we will reply within 24 hours and try our best to help you solve the problems