Tpa3110 15W X 2 Digital Amplifier Board Bluetooth Stereo Amp Module For This is an audio power amplifier board that strengthens low-power, inaudible electronic audio signals such as the signal from radio receiver or electric guitar pickup to a level that is strong enough for driving loudspeakers or headphones. Power amplifiers make the signal audible to listeners. It is the final electronic stage in a typical audio playback chain before the signal is sent to the loudspeakers and speaker enclosures. Specifications: Audio Input: Bluetooth Bluetooth Max. Distance: 10 meters Output Power: Dual channel (15W+15W) Suitable Impedance: 4, 6, 8, 10 ohm speaker Input Voltage: 10~25V DC (suggest 12V DC, 2A above; speaker power is less than 12V DC, 1A) Power Supply Connector: 2.54mm, 3PIN Speaker Connector: 2.54mm, 2PIN Size: 58 x 38 x 10mm / 2.28 x 1..49 x 0.39" Package Includes: 1 x Amplifier Board Product Features Digital amplifier has a higher overload capacity than analog amplifier, and it won't cause crossover distortion, transient inter modulation distortion and you don't have to worry about the loudspeaker internal resistance It supports Bluetooth audio input and the maximum receiving distance is 10 meters Dual channel of 15W+15W power output and a wide input voltage range from 10V to 25V DC Sound quality is very good by using this audio power amplifier module Applicable speaker impedance are 4/6/8/10 ohm, great for turning normal speaker into Bluetooth speaker 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!