-R302 Cool Volume Indicator Bluetooth Audio Power Amplifier Board Module TPA3118 High and Low Adjust

Feature Highlights: 1. Premium Sound Quality – Enjoy a high-end audio experience with clear, powerful stereo output. 2. All-Round Protection – Built-in safeguards against over-temperature, over-current, short circuits, and static electricity. 3. Smart APP Control – Customize your settings via APP: rename Bluetooth, set passwords, adjust prompts, control volume, toggle power tones, use sleep aid, choose sound effects (including custom ones), manage USB playlists, and adjust volume indicator brightness. 4. High-Performance Amp Chip – Equipped with the TPA3118 amplifier chip for efficient, robust sound. 5. Multi-Function Knob – Smooth 360-degree stepless volume control with a clear level indicator. Product Details: This 2.0-channel Bluetooth audio amplifier delivers 30W per channel for rich stereo sound. It supports multiple inputs: Bluetooth 5.1, AUX, USB drive, and USB sound card. The intuitive knob lets you click to play/pause, double-click to switch modes (Bluetooth/USB/AUX), and hold to power on/off. Designed for easy use, it works with speakers rated 10–50W and 4–8Ω, and requires a DC 9–24V/3A power adapter (AC not supported). Compact and lightweight, it fits neatly into your audio setup. Specifications: - Model: R302 - Name: 2.0 Channel 30W×2 Stereo Amplifier with Bass/Treble Adjustment - Amplifier Chip: TPA3118 - Bluetooth Version: 5.1 - Audio Input: Bluetooth, AUX, USB Drive, USB Sound Card - Audio Output: Left 30W + Right 30W - Power Supply: DC 9–24V, 3A (AC not supported) - Compatible Speakers: 10–50W, 4–8Ω - Volume Control: Multi-function knob with stepless adjustment and level indicator - Protection: Over-temperature, over-current, short circuit, anti-static - Features: APP support for customization, sound effects, playlist management, and indicator settings - Product Size: 81×81×34mm - Product Weight: 77g (net) - Color: Black - Material: Plastic Package Includes: 1 × Amplifier Board (Only the listed item is included; other accessories are not provided.) Note: Slight color variations may occur due to lighting and screen differences. Measurements allow a tolerance of +/- 1–3cm.