Effective communication distance is 30-50 meters. * The charging port on the scanner is for battery charging only. Do not connect it to data cables. * Easy inventory with memory of 2003 codes, as convenient as working on a portable USB disk. * Auto sleep mode,the scanner will auto shut down in case of not in use for 23 second. * Connect the USB receiver to the host (e.g.: PC) Description: This device works at the international frequency band 2.400-2.483MHz with one handheld communicates to only one receiver. Effective communication distance can reach 30-50 meters in the clear open air. Decode Capability: Code11, Code39, Code93, Code32 ,Code128, Coda Bar, UPC-A, UPC-E, EAN-8, EAN-13, JAN.EAN/UPC Add-on2/5 MSI/Plessey, Telepen and China Postal Code, Interleaved 2 of 5 , Industrial 2 of 5, Matrix 2 of 5, more for Request Features: 1. New hi-tech product, RF section uses America imported 2.4G wireless communication module. 2. All control systems uses large scale integrated circuit boards from America or Europe to ensure the working efficiency, stability and integrity. 3. Effective communication distance is 30-50 meters. 4. 250K wireless transmission rate, high speed to microseconds delay transmission. 5. Unique frequency hopping technology enables superior anti-jamming ability. Will not be disturbed by other 2.4GHz device. 6. Each scanner can be named with an individual ID to avoid interference with others when working in a network. 7. Self-definable ID identifies the data origin. 8. Auto data detection during ensures transmission accuracy. 9. Easy inventory with memory of 500-2000 codes, as convenient as working on a portable USB disk. 10. Auto sleep mode, low power consumption to Micro-Ampere (¦ÌA) as common battery leakage current under natural condition. 11. Battery low voltage protection; the scanner emits a long beep when started under battery voltage lower than 3.5V. 12. Special charging circuit ensures charging safety.