No need for power supply design, direct plug and use, no loss of input and output signals, seamless switching. This product is designed to select a common output device for switching between various stereo signal inputs. Ideal for use with two stereo signal sources such as TV, MP3 player, CD player, video game console, mobile phone, tablet, computer, or record player, allowing audio output to a power amplifier or active speaker. Two sets of stereo source switching eliminate the need for frequent cable plugging and unplugging. Simply connect all input devices to the switcher and easily select the desired source. Features RCA interface for both input and output, with a precise 2-position manual push-button switch. Specifications: - Power supply: None, plug and play - Frequency response: 20Hz - 20kHz - Distortion: Less than 0.002% - Insertion loss: Less than 0.01dB - Signal gain: 0dB - Signal-to-noise ratio (SNR): Greater than 98dB - Input channels: 2 stereo inputs - Output channels: 1 stereo output - Dimensions: 69mm x 43mm x 39mm - Color: Black - Material: Metal Package Contents: 1 x Audio source signal selector Note: Light shooting and different displays may cause slight color variations between the item in the picture and the actual product. Measurement may vary by +/- 1-3cm.