Digital Amplifier Board Tpa3118 30W X 2 Bluetooth Dual Channel Amplifier Module Product Details 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 Output Power: 2x30W Suitable Speaker Impedance: 4ohm, 6ohm, 8ohm Input Voltage: 8V~26V DC Auxiliary Input: 3.5mm jack Size: 71 x 52mm / 2.79 x 2.04" Package Includes: 1 x Amplifier Board 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 3.5mm audio jack auxiliary input Dual channel of 30W+30W power output and a wide input voltage range from 8V to 26V DC Sound quality is very good by using this audio power amplifier module Applicable speaker impedance are 4, 6, 8ohm, great for turning normal speaker into Bluetooth speaker 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.