The Honeywell MK9540 handheld barcode reader is black, has a laser and a USB cable to connect to the host system, and can be used to scan and decode linear one-dimensional (1D) barcodes. A 650-nanometer (nm), 825 milliwatt (mW) laser produces a single line of light to scan the barcode. A trigger automatically activates the laser when a barcode is placed within range of the device's infrared (IR) sensor. A CodeGate setting allows the scan line to be visible but prevents barcode data from being transmitted until a button is pushed to help reduce accidental scans. The barcode reader USB cable can be plugged into the USB port of a computer or another host system (sold separately) to transmit barcode data. A configuration utility allows the firmware to be updated as needed to take advantage of new improvements or features. A stand (sold separately) enables the barcode reader to be used in a fixed position. This product weighs 149 g (5.3 oz.) and measures 198 x 78 x 56 mm/7.8 x 3.1 x 2.2 inches (H x W x D). (H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) For a complete set of product specifications, please see the manufacturer's brochure.