<ul> <li>Small size, light&nbsp; in weight, easy to carry</li> <li>The noise reduction function, bring clearer sound, with good amplification effect</li> <li>Support TF card and U disk playback (card not included)</li> <li>Using 12W high-power speakers, the sound covers a wide range, suitable for indoor and outdoor</li> <li>Built-in high-capacity lithium battery provides up to 12 hours of working time</li> </ul> <p><span><strong>Note:</strong></span></p> <ul> <li><span>In order to achieve the best amplification effect, place the microphone head 1cm in front of the mouth and speak into the microphone head</span></li> <li><span>If there is a whistling sound, please turn down the volume, and then pull the machine and the microphone away to prevent interference</span></li> <li><span>It is recommended to charge it after use. If it is not used for a long time, it should be charged once a week when it is used again</span></li> </ul> <p><strong>Specification:</strong></p> <ul> <li>Output power: 12W</li> <li>Charging voltage: DC 5V 1A</li> <li>Frequency Response: 50Hz-15000Hz</li> <li>Working temperature: -10℃~45℃</li> <li>Use time: 12 hours (volume at 60%)</li> <li>Charging time: 4 hours</li> <li>Battery capacity: 1200mAh</li> <li>Size: 88*88*42mm</li> <li>Net weight: 232g</li> <li>Supported memory card capacity: up to 32GB (card not included)</li> </ul>