Mindware HGS 2020 Wireless Bluetooth protocol based scanners- interference conditions; Provide different channels for choice. High durability with large battery capacity. Large memory makes it possible in storing more barcodes in inventory mode. Provide industrial use and charge point with high reliability. Technical Specification Scan Performance Scan Mode: Manual , Automatic Indicator Beeper and LED (good read blue and one beep) Read Rate: 200 scans/sec Transfer Rate: RS232baudrate: 2400-38400 Resolution: 4mil Revolve Angle: ±70° Left-right, ±70° Top-down Scan Depth of Field: 0-550mm Bit Error Rate: 1/8 million Print contrast: Above 30% Black Scan width: 5mm-30cm Decode Type: UPC-A,UPC-E, EAN-13, EAN-8, ISBN/ISSN, Code39 CODABAR,Interleaved 2 of 5, Industrial 2 of 5, Chinese 2 of 5, Code128, Code93,Code11 MSI/PIESSEY, UK/PLESSEY UCC/EAN128, China Postage Features Specification: Transmit Performance Frequency Band: 433MHz ISM band Transmission range: 200 to 300 meters open space Pairing ability: Base supports up to 20 scanners Memory: can save over 2,000 scans(calculated @ when length of barcode <15Bytes). We are manufacture of barcode scanner.