Note: 1. Please allow 1?3cm error due to manual measurement. Thanks for your understanding._x000D_2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Specification: Condition: 100% Brand New_x000D_Item Type: Audio Extender_x000D_Material: Aluminium Alloy_x000D_Color: Black_x000D_Weight: Approx. 208.2g_x000D__x000D_Support Equipment: Dvd players, laptop, speaker amplifiers, electric subwoofers and other line-level audio equipment_x000D_3db Bandwidth: 20HZ-20KHZ Bandwidth_x000D_Maximum Input: 2V RMS_x000D_Audio Source Impedance: Maximum 100 Ohms_x000D_Audio Receiver Impedance: Minimum 10k Ohms_x000D_Maximum Distance: Up to 3250 Feet (1000m) Via for Cat5e/6 UTP_x000D_Operating Temperature: 0-55_x000D_Storage Temperature: -20-85_x000D_Power Adapter: 12V 1A Features: 1Support category 5E/6 network cable. 2Support stereo Hi?Fi audio long distances transmission. 3Excellent performance, supporting equipment including DVD players, laptop, speaker amplifiers, electric subwoofers and other line?level audio equipment. 4Aluminum alloy material, durable and lightweight, easy to use. 520HZ?20KHz bandwidth, maximum input up to 2V RMS. 6Its maximum transmission distance is up to 3,250 feet (1,000 m) via for Cat5e/6 UTP. 7It is mainly used in conference room system, in?classroom training, auditorium, custom home installation and intercom system. PackageList: 2 xAudioExtender1 x Power Plug 1 x Manual