Diy Kits DC 12V Portable Headphone Amplifier Board Kit AMP Module Kit For Classic 47 With shell Ship to worldwide via post air mail with tracking number. working voltage : DC12-18Vinput plug: 5.5*2.1 inside:+ outside:-This is kits , not finished , with case Package Contents 1 x Headphone Amplifier Board Kit AMP Module Kit For Classic 47 HIFI with case SHIPPING1. Ship to worldwide. If send by post air mail usually to Europe within 15 days after sent out. 2. Orders processed within 24-48 hours of payment verification.3. The images shown are the actual item and photographed by myself. 4. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.5. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! PAYMENTS1. Payment must be made within 4 days of product closing. (Non-payment may result in a UPI (Unpaid Item) being put on your account. .