This is a 3 in 1 voice amplifier with UHF wireless microphone, portable Bluetooth speaker, and a portable power bank.You have voice amplifier in your classroom or outdoor activities, used a portable Bluetooth speaker to listen to music, and charge your phone if needed.

Come with a wireless UHF headset mic, sound is Pretty clear and well filtered, no feedback and no distortion. It is excellent as far as range, volume, and life.

This pa speaker amplifier is well built, its firm and very sturdy when hold in hand. If you are a tourist guide who talk alot during each destination, under all kind of weather, the waterproof feature is a plus.

Louder than other 25 watts voice amplifier which allows you to project your voice across a group of 200-300 people.

Rechargeable voice amplifier built-in a 4400mAh （2*2200 mAh）big lithium battery allows the speaker to only take 3-5 hours to fully charge, but plays up to 12 hours of amplify time and up to 8 hours of music playtime. Microphone will take 2-4 hours to fully charge but play up to 3 to 5 hours;