... with a single receiver;1800mA lithium-ion battery ensures long working hour;Multiple connectivity options for receiver: Rs232, PS/2 ... , easy to replace or rechargeSpecification: Optical PerformanceLight Source:650nm Laser Scan Rate:78scans/sec. Resolution (pcs0.9)0.10- ... RF ID, barcode data terminal, CCD barcode scanner / reader, laser barcode scanner / reader, 1d barcode scanner, 2d barcode scanner, ...