【 Bidirectional 3.5mm audio switch 】 Play and Plug , No power required. The 3.5mm 1x2 (one input to two outputs) or 2x1 (two inputs to one output) interface audio selector is designed to easily switch between multiple receiving audio devices (speakers, headphones, etc.) or audio sources (mobile phones, computers, etc.) | 【 Durable, small and exquisite 】 Small and compact, beautifully designed, equipped with Duable metal shell. Easy to hook up , does not occupy space, and is very suitable for use at a desk or office. | 【Low impedance design 】The audio switch has a low impedance design that provides high fidelity audio reproduction while minimizing cable noise. The device also features a high-quality headphone jack with gold-plated contacts for reliable performance. | 【One click switching, easy to use 】Press the selection button to switch between two playback devices (1x2 mode) or switch from one audio source to another (2x1 mode) without frequently plugging in and unplugging cables. | [Extended compatibility, included with cable] Audio source: Ordina Motors, laptops, mobile phones, audio players, game consoles, etc. Playback devices: headphones, speakers, audio amplifiers, etc. Suitable for all 3.5mm audio interfaces, whether they are three pole or four pole (microphone function not supported). Product included