If you want a cheaper alternative of the ScanAvenger scanner, this BEVA Wireless Handheld Barcode Scanner will suffice.
Since it costs less than the previous scanner, you can expect fewer features. However, you still need to check it out as it also has unique features not found on other scanners.
In terms of connectivity, this scanner has a 2.4G wireless connection via a USB dongle as well as a USB wire. This is also a plug-and-play scanner with up to 328 feet transmission.
One of the features you may like with this scanner is its anti-drop design of eco-friendly ABS scanner material and silicone protective cover. Even if it drops from a 1.5m height, it will still work perfectly.