Because of a sudden problem with my voice box, I needed to get a voice amplifier urgently, so that I could talk very quietly. My voice therapist said that I could find one that's OK for about $30, so I started with testing 4 of wired ones in that price range, as well as a wireless system that a friend loaned to me, and two sets of wireless lavalier mics connected to my amplifier .After spending countless hours in the first two weeks trying to make any of those products work well enough for my teaching, causing tremendous frustration, I ordered this one. It is three times the price but what a difference! The sound is clear, the mic is wireless and omni-directional, so the amplifier does NOT need to be on my body, connected to the mic with a wire but far enough from it and other devices in the room not to cause interference (awful shrieking), and the mic picks ups much more reliably, without echo.Not to mention the multitude of additional functions that actually work. In AUX mode, it can be used as speakers for just about anything with a 3.5 mm audio plug or 6.35 mm with an adapter or some other sound adapter. It even works with a different brand of wireless mics if its receiver is plugged into the AUX jack. In Bluetooth mode, it works with my iPhone and the like. Using the microphone jack, I was able to make a powered condenser mic and mics of other voice amplifiers work.There is also a mute button, which I really wanted, and an SOS siren that I'm not sure I'll ever use. The unit is certainly too large to carry around just for that, but it could save someone from a sticky situation while carrying it.It's also possible to play music with it from a jump drive, TF, or connected device, and to make a short audio recording, though I am not interested in those, so I have not tested them. The unit is also supposed to be waterproof and able to tough.By description, the charge should hold for many hours. I have not yet been able to use this unit enough to attest to that but, based on my experiences with this unit so far, I have a good feeling about it. Should my expectation not come true, I plan to update this review. Regardless, I really wish I could guy a second microphone, so that the batteries of two microphones would last as long as one amplifier's.I am really excited and relieved that I finally found a void amplifier that may be truly helpful in my situation, rather than a source of immense frustration, one that allows me to provide the learning experiences of the same quality as under normal circumstances.Update: The AUX jack seemed quite tight at first, but worked a throughout the testing period. However, within a week or so, something inside seemed to move or break and it no longer registered anything connected to it. No AUX devices could be used with it. I contacted the manufacturer and they promptly sent me a replacement. Excellent customer service! Hope the AUX port malfunction was an odd event, and the replacement unit will work for a long time.

Great little device and we'll made. Not loud enough for what I needed it for but was easy to connect to an external speaker for more volume.

Glad I found this! Arrived on time, well packaged..easy to set up. Easy to use. Headset is awesome for hands free use. No feedback.. Microphone sits at just the right position for clear unobstructed speech. Used at a presentation for 30 people in a 40x30 ft room - saved my voice and everyone heard well with o reverb. Excellent performance.

The voice amplifier provides clear and loud sound without distortion. It is lightweight, portable, wireless, and easy to carry and wear. It comes with an excellent appearance, and durable accessories and offers the best quality at a reasonable price. This device is perfect and essential for teachers and individuals for everyday use.

This product is very functional, convenient, and practical for me. I used it everyday, and it worked well. Battery life lasted longer and the design is much better. I already bought three and had given two to my friends. I love this product and will keep on buying.

Another teacher uses one and our signals always get crossed. I do love not having to have a speaker hooked up to you. The charger stopped working after day 2.

The sound quality is impressive. The amplifier provides a clear, crisp, and natural voice fprojection, even in large classrooms or noisy environments. I can speak at a normal volume and still be heard in the back of the room. Also the microphone is comfortable to wear for long periods, and the amplifier itself is small but powerful. Worth the price, I’m glad I tried it.

I was expecting less. The sound is good. I use it for singing in dementia wards where the residents don't hear well.

As a physical education teacher, this is a game changer!! Every week, I am in the gymnasium for 2 full days and 1 day outside teaching physical education to 7 classes of children from Kindergarten to Grade 3. This has been extremely helpful in projecting my voice so I do not have to strain my vocal cords trying to speak to a large group all day long in a big space such as the gym - or outside where it can be windy and harder to hear. Would totally recommend to any teacher!! Love it - it’s also really nice that it is cordless.

This review is for the M801 Voice Amplifier in the Black Color. The item arrived nicely packaged with the amplifier box, headset microphone, adjustable fabric strap, and charging cables. Positives: It charges quickly. It makes noises to let user know when its on. The light on the headset is green when it is turned on as well. Cons: I wish the headset that rests on my head could be adjustable. Sometimes it slides depending on my hairstyle. I have used it in my classroom everyday for many activities. It helps students sitting further away from me during read aloud stories. I use it while students are cleaning up to give directions. I even use it during dismissal time to call out children's names as their parents arrive. It is a great addition to your classroom and it saves your voice!!

I use this thing a lot for work, so I have many thoughts. Pros: the sound is probably the best for something like this. I often sing in big dining halls, and this is the first portable I’ve found that is powerful enough to fill the room! Cons: teeny, tiny delay (bothered me at first), randomly cuts out sometimes (seems to lose connection with itself), and you have to charge it quite frequently compared to others I’ve used. Overall, I’m pretty satisfied with it and am very thankful for the volume and sound. Definitely helps save my voice!