YS LT21 Bluetooth Audio Digital Amplifier Board Module 2.1 Channel 15W 15W 30W with Bass Channel

Feature: 1. 2.1 Channel Bluetooth Efficacy: Bluetooth 5.1, AUX, U disk, USB sound card, cell phone APP high fidelity sound quality, passive speaker output. 2. Rich Interface: This amplifier board has several interfaces with powerful functions and high compatibility. 3. AUX Audio Connection: Bass independent adjustment, 360 degree infinitely tunable sound quality is clear, restore the sound details, as if live music. 4. Cell Phone APP New Upgrade: Support for Android for IOS system, APP visual operation play mode volume, sound, up and down song control, play pause, play mode to modify the Bluetooth name, set the connection password 5. Protection Mechanism: This amplifier board is protected against overheating, overcurrent, short circuit and static electricity. Specification: Item Type: Power Amplifier Board Product Material: PCB Bluetooth Version: 5.1 Weight: 105g 3.70oz Audio Channel: 2.1 Channel Input Method: Bluetooth AUX, USB, USB sound card Power Supply: DC9 24V 3A or more Audio Output: Left Channel 15W, Right Channel 15W, Bass Channel 30W Adaptable Speakers: 10W 50W 4 Ohm 8 Ohm Volume Adjustment: High end encoder knob adjustment, smooth feel Protection Mechanism: Overheat, overcurrent, short circuit, anti static protection APP Support: For YS Audio APP control. Package List: 1 x Power Amplifier Board1 x Upper Cover Plate1 x Lower Cover Plate2 x Knob Cap1 x Heat Sink1 x Screwdriver1 x DC Adapter8 x M2x3mm Screws4 x M2x16 Copper Post4 x M2x3 3 Copper Pillar