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๐ค Own the room, not your voice!
The SHIDU Voice Amplifier SD-258 is a compact, portable PA system delivering crystal-clear 10W sound coverage over 11,800 sq.ft. Designed for teachers, coaches, and guides, it features a rechargeable 1800mAh battery offering up to 12 hours of amplification, versatile USB/TF/AUX playback, and a lightweight, clip-on design for effortless mobility. Durable and backed by a 36-month warranty, itโs the ultimate vocal companion for professionals who demand clarity and stamina.












| ASIN | B07FLV88J8 |
| Audio Input | USB, Micro SD, AUX |
| Battery Type | Lithium-Ion (Li-ion) |
| Best Sellers Rank | #302 in Musical Instruments ( See Top 100 in Musical Instruments ) #2 in Power Amplifiers #123 in Portable Audio & Video |
| Brand | SHIDU |
| Color | Black |
| Compatible Devices | Guitar, Headset |
| Connectivity Technology | USB |
| Connector Type | USB; 3.5mm Jack |
| Customer Reviews | 4.3 out of 5 stars 4,142 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) |
| Item Dimensions | 3.35 x 1.57 x 4.13 inches |
| Item Weight | 5.74 ounces |
| Item dimensions L x W x H | 3.35 x 1.57 x 4.13 inches |
| Manufacturer | SHIDU |
| Mfr Part Number | S258 |
| Model Number | S258 |
| Mounting Type | Portable |
| Number of Channels | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Wattage | 10 watts |
| Power Source | Battery Powered |
| UPC | 759675088331 |
| Unit Count | 1 Count |
A**R
A must for any teacher
This amplifier has saved me from losing my voice. Being a music teacher during this pandemic, I have to be heard over elementary school kids and instruments while wearing a KN95 mask. I was going home every day with almost no voice from yelling. This amplifier stopped that. I can now talk at a normal level and my students can hear me no matter where I stand in the room. Since using this, my students now hear me clearly and have stopped asking me to repeat myself constantly. The headset is light and doesnโt pinch me at all. I can also wear it around my neck if I donโt want to put it on my head. The belt clip on the speaker is the best! I clip it onto my pocket and it is out of the way when I am demonstrating instruments and whatnot. I would highly recommend this product for all teachers and anyone who has to do any speaking in front of many people while wearing a mask.
M**G
It works!
I bought this microphone for use on a bus with a group of elderly women. Our speaker was going to get on the bus and tell us what we would be seeing in Santa Claus Girls workshop. We thought it would be easier to do this while they were sitting and I knew they wouldnโt hear her. This worked very well, everyone heard her and the sound was clear and loud. Several previous reviewers commented on the screeching noise when the headphone came close to the unit so I tried to be careful but it did screech when I let the headphone drop down before I turned the unit off. I should have been more careful. I was very impressed by how well this worked for the low cost to buy it.
G**S
Perfect for those who are still masking
Due to age and health I still wear masks. It is hard for people to hear me when I speak and I get hoarse from trying to shout for extended periods. Enter this terrific headset mike and amplifier. It charges easily, can be hung around waist or neck, and has great sound amplification. My family was bowled over--they commented, "This is a 1000 times better than trying to make out what you say" or "I was doing the dishes with running water and I could hear you perfectly without straining or having to turn the water off." I can't comment on how long the battery lasts as I've only used up to 2 1/2 hours, so I'll add that later. It is a game changer for church, being in a car, going out into crowded venues anywhere as much as it is great even with 1 or 2 people inside. WONDERFUL product! Wish I'd known about it 2 years ago!
J**N
Good portable amplifier
Works quite well. I ordered to use at an outdoor yoga class and it did just what I needed. If needing to cover a larger area or group outside, might need something with a bigger speaker but for small groups outside or larger areas inside, it's really good. Shoulder strap is really handy.
E**Y
Awesome
I love it ! Easy to use , volume was pretty loud , overall great quality
C**C
Bluetooth connection does not work at all
Its great for singing or talking. Projects voice loudly. Although im dissapointed in the Bluetooth connectivity it does not work at all. The button is basically there just for show. It clips nicely to clothes to take anywhere very portable. Ive only had to charge it once or twice so if you arent using it for a super long time can last you months.
J**K
Stopped working after week 2 of teaching at my campus
V**S
Perfect for small/medium size rooms
Love it
W**T
Great
Great and very easy to use
M**T
Good little mini amplifier!
I have been giving this one a go, as I have been making a few presentations for some classes, and the thing I noticed was that I couldnโt be sure if all people could hear me clearly, so my voice was going unnaturally high. Then I ordered this genius thing, and it is working. And that incredibly well, especially considering it was a relatively reasonable price for it. All 15 people heard me well, and they found it easy to hear every single word, and I spoke just as if they were next to me - and the amplifier did the rest for me. My voice was good and strong even as I spoke an hour continuously. I also noticed that I was absolutely taken for being a bit extra professional as well. I can happily recommend this for a classroom or some bigger birthday parties with speeches- and everywhere you need a group of people to listen to you easily even over some distance. It seems to be well built and of acceptable quality too. So I can surely recommend it to all that speak in front of people and want to save their voices. It truly does!
M**A
Good product, would recommend it ๐
I have to say, I'm extremely happy with this purchase so far. I haven't even charged the product since I bought it and it's lasted me over a week and it's still good to use. I'm a teacher so I use it for my classes but not the entire period, I turn it off when I don't need it. My students really like that they can hear me loud and clear. My colleagues loved it so much that a handful of them bought one for themselves. ๐ Overall, I definitely recommend it ๐ Good price, good quality and really helps with reducing vocal strain.
L**N
Quality
voice very clear
J**O
Muito Bom
Veio em perfeito estado . O som รฉ bem limpinho , gostei bastante
Trustpilot
2 months ago
3 weeks ago