Feature: 1. FLEXIBLE AND ADJUSTABLE: LM386 power amplifier chip, magnification can be adjusted between 20 times and 200 times through the adjustable resistance on the board, can directly drive small power horn, suitable for the use of electret microphone2. EASY TO USE: Electret microphone amplifier module support GND grounding, VCC connected to 2.4‑5VDC; For good performance, use the quietest power supply available(this will be a 3.3V power supply) 3. POWER SUPPLY NOISE SUPPRESSION FUNCTION: The amplifier has good power supply noise suppression, working voltage support DC 4V‑12V 4. SCRATCH RESISTANT ABS: Microphone amplifier module adopt excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly 5. 5PCS IN TOTAL: The package contain a total of 5pcs amplifier module, enough for you to replace and use, very convenient Specification: Item Type: Electret Microphone Amplifier Module Package List: 5 x Electret Microphone Amplifier ModuleNote: Pay attention to the standard operation.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. |