The Tera 1100 wireless barcode scanner is easy to connect and has a portable design. It can also read 2D codes (QR codes). I think it's easy to handle because it fits snugly in your hand. There are various QR codes for settings in the included instruction manual, so you can customize it according to your needs by reading them. The push button, infrared, and LED lamp work without any problems. Regarding the battery, I think it will last for a day, but I haven't used it for scanning all day long, so please understand that there may be some individual differences. All the accessories are shown in the photo. As a precaution, it is recommended to use the included cable for charging (any cable included is fine). If you use a cable and adapter that support fast charging, which are used in recent smartphones, charging may stop soon after it starts. To prevent swapping, we generally do not accept returns unless there is a clear defect on our part, so please understand. - Brand: Tera - Model: L100 - Type: Wireless Barcode Scanner - Accessories: USB cable, USB receiver Thank you for viewing.