Mini Amplifier Board Stereo Output 2 Working Mode Sound Power Amp Module for Store Theater Speaker

Feature: 1. Button Control: Stereo mini amplifier board, high transmission effect and stability, with button control, convenient to control volume up and down, switch on and off, etc. 2. Power Supply: This mini amplifier board uses micro 5p interface power supply, ordinary cell phone charger 5V 2A charging cable can be used (not included), convenient and fast. 3. Output Interface: Amplifier module has two sets of speaker output ports (one for left and one for right channel), and it is recommended to connect 4 ohms 5W‑50W speakers. 4. Working Mode Switching: Professional amplifier module, can freely switch CLASS AB or CLASS D working mode according to sound preference and power matching. 5. Easy To Use: Integrated power switch and volume knob, when the sound is adjusted to the minimum turn counterclockwise and hear the click sound that is off, turn clockwise to turn on. 6. Applications: Sound power amplifier board device to adjust the volume through the switch, ideal for DIY speakers. Be widely used in store solicitation, home theater, speakers, etc. Specification: Item Type: Mini Amplifier Board Material: PCB Power Connector: Micro 5p (Reserved for 2.5mm 0.10in Solder Port) Input Voltage: 3.7V 5V Amplifier Operating Mode: Switchable Class AB and Class D ANR: 90DB THD and N: 70DB Crosstalk: 86db DNR: 91db Output Interface: Speaker output port x 2 groups (left and right channel each group), recommended to connect 4 Ohm 5W 50W power speakers to use Users can freely switch CLASS AB or CLASS D working mode according to sound preference and power matching. Product Features: Power switch and volume knob integration, the sound is adjusted to the smallest counterclockwise rotation, hear the click sound that is off, clockwise rotation that is on Product Use: Cell phones, laptops, tablets, sound signals through the 3.5mm sound cable connected to the stereo amplifier output. Package List: 1 x Mini Amplifier Board