<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p>Features: <br/>1. TDA7297 classic amplifier chip, dual channel 15W × 2 output, high fidelity sound quality. <br/>2. Pure audio BT reception, no call interference, privacy protection, 10 meter long-distance transmission. <br/>3. Good effect, signal-to-noise ratio of 91dB, low background noise, pure and clear sound quality. <br/>4. Compact size and appearance, suitable for mini audio modification and assembly. <br/>5. Plug and play design, simply connect the power and speaker to produce sound, easy and convenient to operate.</p><p>Product Introduction: <br/>TDA7297 BT amplifier board with excellent performance, 10 meter long distance, pure audio unidirectional wireless reception of BT signals, classic imported TDA7297 amplifier chip, single power supply 12V, dual channel output, power up to 15Wx2; Small size, high volume, high fidelity, and no background noise are the blessings for electronic enthusiasts to modify or assemble mini speakers! <br/>TDA7297 is a classic 2.0 power amplifier chip, known for its excellent performance and high fidelity high-power output. In response to market demand, we have incorporated a mini BT module into this chip to form a smaller BT amplifier. When you hold it and connect it to the power and speaker, it immediately emits sound, giving you a BT speaker and freeing you from wired constraints. <br/>The BT module is specifically designed for pure audio reception during programming, without functions such as calling or receiving. Incoming calls can be answered directly with a mobile phone, avoiding interference with others and effectively protecting your call privacy. After the call ends, music will continue to play automatically.</p><p>Parameter: <br/>Product Name: TDA7297 Long distance Audio Receiver BT Amplifier Board <br/>Working voltage: AC/DC single power supply 7-12V, recommended 12V/2A switching power supply <br/>Working current: above 2A <br/>Receiving distance: ≥ 10 meters <br/>Maximum power: 15W+15W, recommended to use speakers with 15-50W4~8Q <br/>Frequency response range: 20Hz-20KHz <br/>Signal input: 300-650mV <br/>Signal to noise ratio: 91dB <br/>Motherboard PCB specification: 52x52mm, thickness 1.6mm, high-quality FR-4 fiberglass board <br/>Motherboard finished product specifications: 52x56 × 42mm (length x width x height)</p><p>Package Include: <br/>1X module <br/>1X cable <br/>1X potentiometer<br/><br/></p></div></div><p><br/></p>