<div class="detailmodule_dynamic"><kse:widget data-widget-type="relatedProduct" id="1005000004074434" title="" type="relation"></kse:widget></div> <div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><br />Features: <br />1. Made of high-quality materials, upgraded to BT 5.3 version, with an effective distance of about 15 meters, connected for on-demand broadcasting. <br />2. Supports TWS, forming a wireless pairing box, instantly transforming into a left and right channel stereo sound system. <br />3. This product is very suitable for DIY simple monaural amplifiers. The left and right channels are mixed together by professional internal circuits, and the left and right channel components are not lost. <br />4. USB input playback, HIFI sound quality, high fidelity, high-definition sound quality, immersive enjoyment. <br />5. Widely applicable, suitable for 4-8 ohms, 5-30W speakers, two independent speakers can instantly become left and right channel stereo speakers after TWS interconnection, achieving true wireless connection.</p> <p>Parameter: <br />Model: ZK-301B <br />Name: Mono 30W BT Audio Amplifier Module <br />BT version: 5.3 <br />BT transmission distance: 15 meters <br />Audio input: BT+AUX+USB flash drive+USB sound card <br />Audio output: Mono 30W <br />Compatible power supply: DC9-24V, 3A (cannot be connected to AC power) <br />Compatible speaker: 4-8 &Omega;, 5-30w <br />Total volume with buttons: <br />Click: Play/Pause <br />Double click: Next track <br />Triple tap: Enter or exit TWS mode <br />Long press: power on/off <br />Protection mechanism: Input anti reverse, over temperature, over current, short circuit, anti-static protection <br />Featured feature: Supports APP functionality. Change BT name, password settings, adjust the volume of prompt sound, turn on/off prompt sound, sleep aid music, firmware upgrade, etc; The box function and true wireless function allow two sets of speakers to be combined into a left and right channel box, providing a stronger sense of spatial positioning. <br />Caution: If using a 4 &Omega; speaker, please use a 12V power supply as high voltage can damage it! <br />Package include: <br />1 * Audio amplifier board (shell needs to be assembled by oneself) <br />1 * Accessory combination<br /></p></div></div>