Feature: 1. GOOD PERFORMANCE: A HiFi headphone amplifier chip with low distortion, voltage and power consumption, for single battery power supply.2. OUTPUT INTERFACE: Designed with 3.5mm headphone hole output and 2.54mm pin output, which can be selected according to different needs.3. SMD PROCESSING: The mini headphone power amplifier board is made by SMD technology, ensuring dependable performance and good contact.4. VOLTAGE AND POWER: The working voltage of the amplifier board is DC 3-12V, the maximum output power is 80mw x 80mw, stable and practical.5. COMPACT SIZE: The headphone preamplifier module has compact size, and is easy to install, which is used for more audio devices. Specification: Item Type: Headphone Amplifier BoardModel: MAX4410Material: ABSWorking Voltage: DC 3-12VMaximum Output Power: 80mw x 80mw Package List: 1 x Amplifier Board1 x Nut1 x Iron Washer Note: Please be careful when using. 1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties.2. duties,taxes,and charges are not included in the item price or shipping fee.3. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase.4. All disputes arising from the duties will be submitted to ebay for solution. 1. Any questions, pls. contact us via ebay message or email us.We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails.2. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5 " in very area3. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders. On Mar 25, 2026 at 20:43:04 PDT, seller added the following information:.dc_tracker_img .dc_tracker_img:last-of-type p:empty+hr hr+span.ebay,hr+*>span.ebay