【WIRELESS CHARGING BASE】-Own the Eyoyo versatile charging base, no more worrying about running out of power. Charging your ring scanner at any time you need, or just use it as a general storage dock. Unlike general charging docks, this charging dock built-in 1200mAh large capacity battery, which can charge your finger scanner 3 times when it is fully charged. 【WEARABLE FINGER RING DESIGN】-Two-finger ring design which allows with left/right-hand operation while keeping both hands free. With a 330° flexible rotation scanner head which will give you greater flexibility. Save Time and Increase Productivity with a Ring Scanner. 【3-IN-1 USB WIRED & WIRELESS CONNECTION】-The Eyoyo ring barcode scanner is equipped with Bluetooth, 2.4G Wireless, and USB Wired connection. Its distinctive design easily converts between corded and cordless operation. As your needs change for easily connected with an iPhone, Andriod phone, laptop, PC, tablet, POS. Work with Windows XP/7/8/10, Mac OS, Android OS, iOS.Support Bluetooth HID Protocol, SPP Protocol and BLE Protocol. 【PROVEN & POWERFUL 2D SCAN ENGINE】-Equipped with the high-performance 2d CMOS scan engine, It rapidly and easily scans barcodes off the cell phone, tablet and computer displays and even scans curved, wide, poorly printed, and damaged barcodes with no challenge. Scanning ISBN/UPC/EAN, UPC/EAN With Supplementals, Code39, Interleaved 2 of 5, Code93, Code 128, Codabar, QR, Data Matrix, PDF417, etc barcode with ease. 【MORE THOUGHTFUL DESIGNS】-Vibration/Sound Alert ON/OFF function, If you are tired of the scanning sound in a quiet working environment, simply scan the set code enter into vibration mode. The Physical power switch button helps you save energy in case of error operation. Key trigger mode + Auto-sensing mode +Continous mode. When you change the mode to auto-sensing mode or continuous mode, the scanner will automatically read the barcode once the barcode is detected without pressing the button.