Wireless barcode scannerPerformance Light Source 650nm Laser Frequency 433MHz Communication Distance 300m (max.) Resolution (pcs0.9) 0.10-0.825mm Scan Width 60mm at 30mm; 98mm at 100mm Depth of Field 10-420mm Scan Rate 78scans/sec. Light Source 650nm Laser Frequency 433MHz Electrical Receiver voltage DC 5V Battery 1800mA Lithium ion battery Working Current 85mA Environmental Operating Temperature 0-45 Storage Temperature -20 - 60 Humidity 5%-95% (non-condensing) Lumination 5000Lux (max.) Operating Temperature 0-45 Physical Dimention 110x70x160mm Material ABS+PC Weight 180g