4 Ways R L Stereo Audio Switcher - Bi-Directional switching splitter for audio sharing with active speakers, providing clear and distinct audio. Switch Knob - 4-channel switch knob allows easy switching between audio input or output. Fully isolated circuits ensure each signal remains unaffected by the other three channels. Plug and Play - 4 Ports R L stereo audio switcher requires no external power supply, and sound quality is not compromised. Compact Design - 4 Ways Audio Switcher Splitter measures 11cm x 9.5cm x 4.5cm / 4.33in x 3.74in x 1.77in, features an iron metal case, compact size and design, suitable for home and office use. Wide Compatibility - L R Sound Channel Audio Switch Splitter selector is designed to work with various audio amplifiers, DVD stereo speakers, players, game consoles, TVs, headphones, and more. Color: Black Material: Aluminum alloy Size: 11cm x 9.5cm x 4.5cm / 4.33in x 3.74in x 1.77in Package Contents: 1 x Audio Switcher 1 x Audio Cable 1 x English Instruction Manual Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3cm.