[ Stereo Audio Mixer ] 4-Channel Audio Mixer capable of mixing 4 stereo audio signals from instruments, CD players, tape players, computers, mobile phones, and tablets to speaker and headphone outputs. [ Input and Output ] Features 4-channel (L&R) input and 1-channel (L&R) output for convenient connectivity. [ 4 Separate Volume Controls ] Each channel has an individual volume control, allowing customizable volume adjustment. [ No External Power Required ] Operates without a power supply. Plug-and-play design with metal housing for durability. [ Ultra-Low Noise Performance ] Delivers high sound quality even at maximum output levels, ensuring excellent audio performance. Specifications: Input impedance: 10K ohms to 47K ohms Output impedance: 2.5K ohms to 10K ohms Gain: -12dB MAX Product net weight: 0.2 kg Product dimensions: 85 mm x 52 mm x 40 mm Color: Black Material: Metal Package Contents: 1 x Stereo Audio Mixer Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement may vary by +/- 1-3 cm.