Giecy Portable Bluetooth Speaker (30W) with 7.4V/2800mAh Lithium Battery and microphone headset. Rechargeable mini voice amplifier for trainers, teachers, tour guides, and meetings.

["【Multifunctional Voice Amplifier】Voice amplifier with microphone headset, can also be used as a radio, recorder, computer and phone speaker, TF card, MP3 player, hall, AUX input, powerful battery, USB, Bluetooth function.","【Long Working Time】The rechargeable voice amplifier is built in a 7.4V/2800mAh large lithium battery with a high safety index and long battery life. You can use it for 14 to 17 hours (MIC mode) and 7 to 11 hours (music mode) with a fully charged battery. The amplifier charging takes 3-5 hours.","【Amplifies Your Voice】The portable voice amplifier with microphone headset is not only a cute voice saver, but also protect your throat to the max with powerful and clear sound (30W). You can use it in multiple places, such as classrooms, subway stations, and outdoors. A good assistant to amplify your voice in your group with over 100+ members.","【Bluetooth Voice Amplifier】The portable voice amplifier with headset, not only an amplifier, but also a portable Bluetooth speaker. You can stream your favorite music from any Bluetooth-enabled mobile device up to 10 meters away.","【Music Playback Supported】This mini Bluetooth voice amplifier with microphone also functions as an MP3 player, supporting TF card (Micro SD Max: 64 GB) and U-disk. The voice amplifier with headset can also be used as a speaker, you can repeat individual melodies, play all music tracks in a loop.","【Quality Guarantee】We guarantee the sale of high-quality voice amplifiers that are rigorously tested before shipping. If you have any questions during use, please contact us and we will provide you with excellent customer service."]