Fosi Audio PH04 4-Channel Headphone Amplifier, Stereo Audio Amplifier, Metal Construction, Ultra-Compact, Portable Headphone Splitter with 3.5mm

[Share a Single Stereo Source] This 4-channel amplifier features four independent stereo high-power amplifier sections and four independent stereo high-power amplifier sections, each with its own volume knob. This allows you to monitor your mix while training, use it for live performances, or listen to TV. [Suitable for Studios, Stages, and More] The extremely compact and portable design makes it ideal for studios and stages where multiple headphones are used simultaneously. [Excellent Stereo Quality] This mini headphone amplifier features 3.5mm (6.35mm) inputs and outputs, ensuring smooth connection between outputs and inputs. Ideal for almost all types of headphones. It delivers stereo audio quality and eliminates the need for a 6.35mm to 3.5mm adapter to connect the headphone power amplifier to your headphones. [Unique and Compact Design with Switch] The compact headphone power amplifier can be conveniently turned on and off with the power switch, anytime, anywhere. This saves energy while enjoying high-quality stereo audio.