Description: 【3 Power Amplifier Switch Selection Input】: using a mechanical self locking key switch, power amplifier playback can be Select key switch Select 1 of the power players to play music. 【3 Sets Of Output Key Switch】: using a mechanical self locking key switch, each output with an independent switch, 1 pair of speakers can be turned on simultaneously or turned off separately. 【High Performance】: The stereo audio selector input and output of the switcher adopt a standard red and black banana head interface, which can be used directly without power supply Output with signal no load protection function. 【Quality Material】: The speaker amplifier exterior is made of all metal materials with a fine steel case, compact size. 【Wide Application】: Stereo audio switcher fits any system and is compatible with all types of power amplifiers and passive speakers.   Specification: Material: Metal Frequency Response: 10Hz-50KHz Channel Power: Support Peak Power Up to 300W Product Size: 240mmx105mmx55mm Package Includes: 1 Stereo Audio Selector Note: Please allow slightly errors due to manual measurement and different monitors.