Voice Amplifier for Teachers, Portable Speaker with Wired Microphone, Personal PA System and Megaphone, 18W, 4400mAh, Feature Bluetooth, Record, Waterproof, for Teaching, Speech Tour Guide M800 It's great as a loudspeaker because the voice projection is clear and loud. Suitable for classroom and even outdoor spaces. Portable voice Amplifier is well built, its firm and very sturdy when hold in hand ! Please be noted that headset microphone is WIRED but NOT wireless. Portable voice amplifier support Bluetooth, Recording, Loop playback, Aux input, TF card, U disk. What astonishing is the ability to support microphone input and music play simultaneously! The personal amp allow you to be heard and maintain social distancing. Waterproof voice amplifier's silicone cases and interface design ensure Shockproof, Dustproof ,level up to IPX5! Firm, Solid and Sturdy! This portable microphone headset and speaker has a clip you can hook on to a belt and comes with a neck strap which can also be used as a belt attachment. Bin:Y