Support UHF tag protocol ISO18000-6C Support ios, android and other intelligentsystem platforms. communication interface: 3.5mm audio interface (common headphone jack) legere procul: 50cm（depend on tag size） Work time: continuous 3 horis,query over 30000 temporibus. facultatem altilium：550mA Charge method：USB 5V/0.5A，charge time 2 horis. Work environment temperature: -20℃~+60℃ Material: ABS+PC engineer plastic. magnitudine：42×48×15mm Weight：35g Notice: JavaScript requiritur ad hoc contentus.