1 / 7SHIDU M800 Voice Amplifier with Wired Headset Microphone
The SHIDU M800 is a portable voice amplifier with a wired headset microphone for teaching, presentations, and guided activities. Its listing combines an 18-watt output claim with Bluetooth audio and other playback features, while describing the microphone as wired rather than wireless.
At a glance
- The listing specifies an 18-watt amplifier and a wired headset microphone for hands-free speaking.
- Bluetooth, AUX, TF-card, and USB-drive playback are claimed, along with one-key recording and loop playback.
- The listing claims an IPX5 rating for splash and light-rain exposure, but says the unit cannot be submerged.
- A 4400mAh battery and 12+ hours of continuous use are claimed. Actual runtime will depend on use.
Reference price: $56.99
Price checked: Nov 12, 2026
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Pros and cons
Pros
- Wired microphone avoids relying on a wireless microphone link or pairing for voice amplification.
- Bluetooth playback can be used alongside the microphone according to the product description.
- Compact listed dimensions and rechargeable operation suit portable classroom or presentation use.
Cons
- The headset microphone is wired, so it limits movement to the microphone cable length. The listing gives that cord as approximately 1 meter.
Technical specifications
14 specifications| Brand | SHIDU |
|---|---|
| Model | M800 |
| Listed wireless connection | Bluetooth |
|---|---|
| Output wattage | 18 watts |
| Audio input | 3.5mm audio input, USB |
| Channels | 1 |
| Connector type | USB |
| Compatible device | Headset |
| Power configuration | Battery Powered |
|---|---|
| Battery type | Rechargeable |
| Dimensions | 4.49 x 3.7 x 1.5 inches |
|---|---|
| Mounting types listed | Plug Mount,Freestanding |
| Color | Black |
|---|---|
| Enclosure material | Acrylonitrile Butadiene Styrene (ABS) |
What to know before buying
- Bluetooth may remain enabled when not wanted, according to customer feedback. The listed Bluetooth playback and wired microphone are distinct functions, not evidence of a wireless microphone.
Listing details to confirm
Several listing details are inconsistent or unconfirmed: the title and feature text say the microphone is waterproof or IPX5-protected, while the IPX5 detail describes protection for the amplifier body. Runtime is variously stated as 12+ hours and 12 hours. Power is listed as 18 watts, while another feature describes adjustable 10W, 15W, and 18W levels. Confirm the selected listing's included accessories and coverage details. The listing says the unit is not for submersion, and recommends keeping the microphone pointed away from the speaker to reduce feedback.
What’s in the box
Included- Mic headset
- Voice amplifier
Who is it for?
A good fit for
- Teachers, coaches, tour guides, and presenters who want voice amplification through a wired headset.
- Users who want a portable speaker that also claims Bluetooth and removable-media playback.
Less suited to
- People who need a wireless headset microphone or freedom from a microphone cable.
- Use in conditions requiring submersion protection or a clearly established waterproof rating for every component.

Customer reviews on Amazon
- 5 stars
68% 68% - 4 stars
13% 13% - 3 stars
8% 8% - 2 stars
2% 2% - 1 star
9% 9%
Customer feedback often praises build, ease of use, and sound and voice quality. Some report good battery performance, while others describe charging problems. Volume controls are appreciated but can be hard to distinguish, and feedback also notes Bluetooth cannot be disabled. For a portable amplifier with a wired mic and Bluetooth playback, these reports make control visibility, battery dependability, and Bluetooth behavior worth considering for regular teaching or speaking use.
Positive themes
- Customers report favorable sound and voice quality, solid build, and straightforward operation.
Negative themes
- Some customers report that the unit stopped charging after a period of use.
Mixed feedback
- Battery life receives mixed feedback, with some reporting strong performance and others reporting charging problems.
- Volume controls are generally viewed positively but can be difficult to distinguish.
- Bluetooth is appreciated for playback, though customers report it cannot be disabled.
Frequently asked questions
Is the microphone wireless?
No. The listing describes an included wired headset microphone. It separately lists Bluetooth for audio playback.
Can it play music while amplifying speech?
The product description says Bluetooth music can play while speaking through the wired microphone. AUX, TF-card, and USB-drive playback are also claimed.
Can the amplifier be used in rain?
The listing claims IPX5 protection for the amplifier against splashes and light rain, and says it cannot be submerged. It does not clearly establish the same protection for the headset microphone.
How long is the battery life?
The listing claims 12+ hours of continuous use in one feature and 12 hours elsewhere. Treat that as a manufacturer claim, not a guaranteed runtime.

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