Support UHF tag protocol ISO18000-6C Support ios, android and other intelligentsystem platforms. Kev Sib Txuas Lus: 3.5mm audio interface (common headphone jack) Read distance: 50cm（depend on tag size） Work time: continuous 3 Teev,query over 30000 Zaug. Battery capacity：550mA Charge method：USB 5V/0.5A，charge time 2 Teev. Work environment temperature: -20℃~+60℃ Material: ABS+PC engineer plastic. luaj li cas：42×48×15mm Weight：35g