<ul> <li>The speaker supports Bluetooth/TF card music playback and headphone output functions (TF card not included)</li> <li>With 2.4G wireless and Bluetooth technology, it provides fast transmission speed and stable connection</li> <li>The speaker is compatible with Bluetooth-enabled devices</li> <li>The microphone supporting reverberation sound effect function can make your singing more charming</li> <li>The colorful light colors can create a romantic party atmosphere</li> <li>Bluetooth speaker and microphone are equipped with rechargeable batteries, convenient to be charged</li> </ul> <p><strong>Specification:</strong></p> <ul> <li>Speaker:</li> <li>Power: 6W</li> <li>Working voltage: 3.7V</li> <li>Frequency range: 2402~2480MHz</li> <li>Reverb: 20Hz-20kHz</li> <li>Speaker battery: built-in 18650 battery, 1200mAh</li> <li>Charging time: about 4 hours</li> <li>Bluetooth name: Y2</li> <li>Microphone:</li> <li>Pickup: condenser microphone</li> <li>Working voltage: 3.7V</li> <li>Frequency range: 20Hz-20kHz</li> <li>Battery: built-in 14500 battery, 500mAh (2pcs is 1000mAh)</li> <li>Charging time: 2 hours</li> </ul>