1.IP54. Resitance to 6 ft./ 1.8m drops to concrete. 2. Long communication range 500m in open air. 3. More than 50 hours working time after 4 hours charged 4. 60 thousands of codes can be stored. 5. Easy to use.Plug and play,one key to match cradle and scanner. Product Feature Specifications: Transmission frequency: 433 MHz Transmission distance: 500 meters in open air Storage conditions: 60,000 characters can be stored Battery: 1400Mah lithium battery Estimated operating time: 50 hours Estimated charging time: 4 hours Weight: 820g Operating voltage: DC5V +/- 5% Working Current: 25mA(operating),95mA(maxium peak),250mA(charging) Wire Interface: PS/2, USB and RS232 Material: ABS+PC/TPU Temperature: -20,C-45,C (operating); -40,C - 60,C (storage) Humidity: 5%-90% relative humidity, non-condensing Sealing protection: IP54 (dust and splash cheap prevents spray into the inside of the product) Seismic strength: can withstand 1.8 meters of high drops Scan Mode: Manual key scanning, automatic continuous scanning Scanning angle: ¡¡§¡è60,¡¡§¡è65,¡¡§¡è42,(left&right, front&back, turn) Tips way: Buzzer, LED indicator light Depth range: up to 1.8 meters Decoding speed: 150 times / sec Scan contrast: 25% Readable width: 5mil and 3mil optional Decoding capability: UPC-A, UPC-E,EAN-8, EAN-13, EAN-ISBN/ISSN, Code 39, Code 39(Full ASCII), Industrial 2 of 5,Interleave 2 of 5,Matrix 2 of 5,Codabar, Code 128,Code 93,Code 11, MSI/Plessey,UK/Plessey,UCC/EAN 128, China Post Code,GS1 Data Bar (formerly RSS) etc. Product Specification/Models TS4500 Package List: 1 * Barcode Scanner 1 * Charging&Receiving Cradle 1 * USB Cable 1 * User Manual (English) Package size: 27*9*13cm*2boxes