Fifine Headphone Amplifier 4 Channels Metal Stereo Audio Amplifier, Mini, N6. Product Details ?Share A Single Stereo Source?Amplifier 4 channel with separate volume knob for each of up to four outputs: No audio crackle, minimal distortion at highest volumes. No loss of signal when all four headphones are connected. Headphone amplifier 4 channel would be excellent for up to four people monitoring the mix for tracking, live uses and listen to the TV with earbuds while working out. ?Fantastic Stereo Audio Quality?Mini stereo amplifier with 4X 1/4'' Stereo Headphone TRS Output Connector Jacks, 1/4'' TRS Source Input Connector Jack. ?Stereo ?: You must use the 1/4? TRS stereo audio cable male to male connectors for input and output connection. ?Mono?: 1/4? TS male to male connectors for input and output connection. ??TRS/TS cable is not included in package?? ?Compact and Portable?Solid metal build construction headphone splitter, tight connections, smoothly operating knobs. Quality components and exceptionally rugged construction ensure long life. Ultra-compact headphone distribution amplifier for studio and stage applications. ?Used for Applications?Features a durable and compact design headset amplifier perfect for both on-stage and in-studio performances or application that requires multiple headphone connections.Convenience to use if two or more audio setups on your computer or using stereo amplifier to listen to music or watch TV works great. ?What You Get? Ultra low noise multi headphone splitter provides you outstanding audio performance. 12V DC power adapter included, with light for indicating power on. 1 Year Warranty for FIFINE headphone amplifier. Notice: this is a 4-way headphone amplifier with 1 input 4 outputs, not a mixer that has 4 inputs 1 output. The input and outputs are all 6.35mm ports. Kindly choose the correct version for your need. Feel free to contact us via Amazon messager if you have any questions. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.