Feature:1. COMPATIBLE DEVICES: Card reader adopts Type C connector and is compatible with various brands of cell phones such as for Xiaomi, for Huawei, for Lenovo and for Samsung.2. PROFESSIONAL DESIGN: RFID phone card reader adopts RF receiving line design and embedded microcontroller combined with efficient decoding algorithm.3. BUILT IN BUZZER: RFID ID mobile phone card reader is designed with built in buzzer, the sound can get to 20db, effective prompt.4. PLUG AND PLAY: Mobile phone card reader has stable performance, strong compatibility, high transmission efficiency, plug and play.5. ROBUST AND DURABLE: Portable mobile phone card reader is made of ABS material, which is durable, not easy to damage and has a long service life.Specification:Item Type: RFID ID Mobile Phone Card ReaderMaterial: ABSInterface: Type C Operating Frequency Band: 125KhzWorking Temperature: -10-60Working Voltage: 5VWorking Current: 100mASensing Distance: 0-80MMReading Time: <0.5secSupport Card: For EM4100.Package List:1 xRFID ID Mobile Phone Card ReaderNote:The phone must support OTG function