Scanner, POS machines, card readers and other commercial end-use applications more widely, they often need to move forward to work, the traditional limited liability inconvenient connection explicit, and such devices with Bluetooth prices and relatively expensive. Ca Mau Bluetooth scanner, POS machines, card readers and adapters can solve this problem, just plug in the interface of such equipment. To provide users with a low-cost Bluetooth solution. Product Features:? Compatible Bluetooth 1.1,1.2,2.0,2.1 + EDR specification? Bluetooth frequency band 2.402-2.480GHz? Supports EDR (Enhanced Data Rate), 2M/3M modulation mode? Maximum transmission speed of 3Mbps? Multiple serial interfaces, With a variety of interface connector? transmission distance of 10 m and 100 m (external antenna) two kinds? support for an external power supply and built-in rechargeable battery? support low-power saving mode / high speed mode? secure authentication, data encryption? watch dog automatically reset function? Working temperature: -25 ℃ ~ 85 ℃