Support UHF tag protocol ISO18000-6C Support ios, android and other intelligentsystem platforms. Interface ʻo e fetuʻutakí: 3.5mm audio interface (common headphone jack) Lau ʻa e mamaʻo: 50cm(depend on tag size) Work time: continuous 3 houa ʻe,query over 30000 ngaahi taimi. Meʻa ʻe malava ʻe he puha ʻuhila:550mA Charge method:USB 5V/0.5A,charge time 2 houa ʻe. Work environment temperature: -20℃~+60℃ Material: ABS+PC engineer plastic. Lahí:42×48×15mm Weight:35l