Powerful and Clear. The 30W wireless voice amplifier can also be a wireless loudspeaker, makes your voice reach 1500㎡. You can easily to pair the speaker and microphone, and the pairing method is on the user manual or you can refer to product description. But please do not point the wireless microphone to the wireless voice amplifier with Bluetooth, otherwise it will produce static sound. | Rechargeable PA System with Long Battery Time. This is a rechargeable voice amplifier with a built-in 3600mah battery. After fully charged, The voice amplifier with speaker can play music for 6-8 hours or amplify voice for 8 hours, the wireless microphone headset can last for 4-6 hours, the transmitter can last for 4-6 hours | 3 Microphones for Convenient Use. The voice amplifier with microphone is equipped with a wireless headset microphone, lapel microphone, and stand microphone, you could use whichever you want. Warm Tips, The transmitter is used with the lapel microphone or the stand microphone, and only one microphone can be used with the voice speaker at the same time, which means if you have paired the headset, you can not use the transmitter, that you can not use lapel microphone or stand microphone | All-in-one Bluetooth Voice Amplifier. With 5.0 Bluetooth, you can play music from any Bluetooth device, the voice amplifier wireless microphone and speaker is also supports Aux input, TF Card, U Disk, FM Radio, and One-click Recording. This voice amplifier with wireless microphone headset supports you to play music while talking through the wireless heasdet microphone. Multiple functions for you to use | Portable PA System. This portable voice amplifier for teachers is a 9.06 * 8.50 * 3.54" size, 3.27lb weight loudspeaker, which is compact and easy to carry, suitable for taking classes, yoga instructing, outdoor sports, parties, meetings, karaoke, etc