Features: The 125Khz Contact Card Reader/Writer delivers duplication, supporting for T5577, EM4305, and TM1990A chip for access control system management. This handheld writer features broad compatibility for EM410X, TK410X, and T5577 chip, offering a portable ABS design and interfaces for effortless on site programming. Ideal for IT professionals, security personnel, and facility managers requiring reliable chip cloning across access cards. Perfect for fieldwork, mobile maintenance, or updating access credential in offices, warehouse, and restricted areas with its construction. Engineered with ABS housing, this duplicator ensures rapid chip reading/writing cycles. Specifications: Material: ABS Applicable to Cards: for T5577\ EM4305\CET5200 and all T5577, EM4305 compatible cards / TM chip card Frequency: 125kHz Power supply: 2x 3A batteries requires(not included), can be copied 20,000 times Distance: keychain reading and writing distance up to 2.5cm, card up to 6cm Size: about. 12x8x5cm/4.72x3.15x1.97in Pattern: 2 pattern optional Package Includes: Package 1: 1pc Duplicator Reader Package 2: 1pc Duplicator Reader, 10pcs Cards note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.