Label Agreement: ISO18000-6C (EPC GEN2) Frequency Hopping Method: Broad spectrum frequency hopping (FHSS) or fixed frequency, software configurable Antenna Parameters: 2dBi circular polarization antenna (built-in) Output Power: 12.5dBm to 26dBm (software adjustable) Reading Distance: Up to 0.5 meters (varies based on transmit power, antenna type, tag type, and environment) Writing Distance: Up to 0.2 meters (varies based on transmit power, antenna type, tag type, and environment) Operating Modes: Active mode, Passive mode, Reply mode (not recommended) Power Interface: DC +5V Operating Temperature: -20°C to 55°C Communication Interface: USB virtual keyboard Storage Temperature: -40°C to 85°C Power Source: USB powered Color: White Material: Plastic Note: Product appearance may vary slightly between batches; this does not affect functionality. Package Contents: 1 x UHF Reader, 1 x Data Cable. Additional items not included. Note: Lighting and display settings may cause slight color variations between the image and actual product. Measurement tolerance: +/- 1-3 cm.