Support UHF tag protocol ISO18000-6C Support ios, android and other intelligentsystem platforms. Communication interface: 3.5mm audio interface (common headphone jack) Faitau le mamao: 50cm（depend on tag size） Work time: continuous 3 E tu'uina atu e le tagata fa'atau le HF,query over 30000 taimi. Battery capacity：550mA Charge method：USB 5V/0.5A，charge time 2 E tu'uina atu e le tagata fa'atau le HF. Work environment temperature: -20℃~+60℃ Material: ABS+PC engineer plastic. Tele：42×48×15mm Weight：35g