Koolertron 2.4GHZ Wireless USB Barcode Scanner (2.4G Wireless & USB 2.0 wired) for PC User 1D Barcode Reader 2600 code storage capacity 1500mAh lithium battery 5 Months Stand-by Wireless & Handheld, Convenient and Portable to use. Compact, light-weight, durable & hight quality Plug and play, no need to install any software or app, easy to use 2.4G Wireless operation mode, flexible working solution for inventories without any disturbing cable connection. Ultra-long battery life, Integrated 1500mAh Li-Ion battery Offline storage capacity 2600