Utilizing A Double-Sided Circuit Board And An Ic With A Mute Function, The Specification: Item Type: Stereo VU Meter Driver Board Rated Voltage: AC 12V PCB Size: 55x66mm / 2.17x2.6in Mounting Hole Diameter: 3mm Hole Pitch: 50x56mm / 1.97x2.2in Package List: 1 x Stereo VU Meter Driver Board Product Features ?[DURABLE] Use double-sided circuit board, ensuring the fastness of wire terminals, with firm bonding pad, not easy to loose. ? [PROFESSIONAL ]Adopt professional audio VU drive IC, which contains root dynamic compression circuit, effectively avoiding small signal pointer, large signal, the phenomenon of pointer rendering. ? [MULTIFUNCTION]IC with mute function, mute function feet will get a low level when you turn it on, avoiding pointer overload. ?[CONVENIENCE] Use AC12V power to supply circuit, more convenient to use. ?[DURABLE] Use double-sided circuit board, ensuring the fastness of wire terminals, with firm bonding pad, not easy to loose. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!