Aiyima T8 6N3 Digital Tube Preamplifier Bluetooth V5.0 Hi-Fi Headphone Vacuum Product Details ? Multiple audio input methods,It Support Bluetooth 5.0/PC-USB/RCA inputs from various devices like iPod, Phone, MP3, TV, DVD players, laptop, desktop computer or other streaming media players etc.,It's a nice vacuum Headphone tube preamp exclusively designed for the customers who pursue HiFi sound! ? Tube T8 be used as a headphone amplifier,Can Enjoy high-quality lossless music at any time,RCA/3.5mm headphone output(With priority),RCA output to the powered speaker,amplifier passive speaker,Headphone output is suitable for 16~300? headphones and headset ? QCC3031 Bluetooth 5.0,Support APT-X,APT-X LL lossless transmission,Signal transmission faster and stable,let your enjoy the HiFi sound! ? Adopt 6N3 tube vacuum design for easy replacement(such as 6N3,6H3,GE5657,396A,2C51,12B4A,GE5670,6H3n-E)with DC 12V power adapter,provide warm retro tube sound,With independent gain adjustment design for treble and bass 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.