The handheld ID card duplicator features a compact and ergonomic design, with simple "READ" and "WRITE" functions for easy operation. Operating frequency: This RFID reader/writer supports only 125 kHz frequency. Please verify the frequency of the card you intend to copy before purchasing. Applications: Suitable for use in communities, offices, homes, and other locations requiring security monitoring or access control systems. Supported card types: Compatible with ID cards, HID cards, and AWID cards. Supports writing to T5577, EM4305, and CET5200 chips. Color: As shown Material: Plastic Power supply: 2 x AAA batteries (batteries not included) Note: Slight variations in appearance may occur between production batches; this does not affect functionality. Package contents: 1 x Handheld ID card duplicator 3 x Keychains 3 x Blank cards