occkic | BPM13 Plus 6.2W Mono Class D Amplifier Bluetooth 5.4 Audio Power Amplifier PCBA 1-channel mp3 Music Player Speaker DIY Module

Features:1. Equipped with Bluetooth 5.4 and USB dual inputs; when connected to a computer, offers adjustable EQ and real-time audio effects.2. Genuine Class D amplifier chip; measured output of 6.2W at 4Ω load; power ratings are accurate.3. Carefully selected high-quality resistors and capacitors optimise both high and low frequencies, delivering a refined, high-fidelity sound.4. Intelligent noise reduction and precise volume control with 1% volume steps, offering excellent signal-to-noise ratio.5. Compatible with 3.7–5V power supplies, commonly used for DIY portable speakers and car audio modifications.Performance Overview:1. Genuine amplifier chip delivering a genuine 6.2W output at 1% THD+N under a 4Ω load – no exaggerated power ratings!2. Two green-gold high-frequency capacitors for superior high-frequency performance and ample energy storage capacity.3. Utilises imported surface-mount capacitors with sufficient capacity to ensure stable power supply during chip operation and prevent leakage current when powered off.4. Features high-precision 1% tolerance audio resistors and imported coupling capacitors to ensure superior sound quality.5. The charging chip includes reverse polarity and surge protection; utilises a high-quality charging control chip with a charging current of up to 1000mA for high efficiency.6. Equipped with third-generation Acoustic™ intelligent noise cancellation; when manually switched on, it maintains amplifier output whilst preserving a high signal-to-noise ratio during startup, ensuring that every word of audiobooks is played clearly from start to finish.7. Features a stepless volume control engine, allowing volume adjustment with 1% precision for greater accuracy.Specifications:Product Name: 5V Bluetooth Audio Amplifier ModuleChip Type: Mono GainBluetooth Version: Bluetooth 5.4Input Voltage: DC 3.7–5.0VSupply Current: DC 2A (Max)Output Power: 6.2W (4Ω) Up to: 7.3WAmplifier Type: Class DOutput Noise: 0.1mVrms (f=20Hz–20kHz, Av=25dB)Audio Input: Bluetooth + USBOutput Channel: 1-channel monoDimensions: 25mm × 30mm (excluding connectors)Please note: 1. Reversing the battery polarity will cause the board to burn out! 2. Please ensure proper insulation on the back of the board!Product list:1 × Bluetooth Amplifier Module