SHIDU M900 Waterproof Wired Voice Amplifier – 25W IPX5 Rechargeable PA Speaker
The SHIDU M900 is a waterproof wired voice amplifier built for outdoor teaching, touring and public speaking where weather and dust are a concern. It delivers 25W of output power through a dual voice coil speaker, is protected to IPX5 water resistance, and runs for 5–7 hours on a 2200mAh rechargeable battery. It also supports Bluetooth 5.0, TF card, USB and AUX audio input, weighs just 552g, and is available in black and green. The M900 is the reliable, high-power choice when you need loud, clear voice coverage in rain or shine.
Key Features
IPX5 waterproof design – protected against rain and water splashes, ideal for outdoor tours, field teaching and events.
25W high-power output with dual voice coil – strong, balanced sound that fills large outdoor spaces; frequency response 80Hz–18KHz.
5–7 hours of battery life – a full day of teaching or touring on a 2200mAh battery, charged via DC 9V 1.2A.
Wired microphone for stable voice – a cable-connected mic keeps your voice natural and interference-free.
Bluetooth 5.0 – wirelessly play music, audio books or lesson materials from a phone or tablet.
Multiple audio inputs – TF card, USB, AUX and microphone for maximum playback flexibility.
Ultra-lightweight 552g design – easy to carry all day, in a durable ABS+TPU casing with a 138 × 108 × 51mm footprint.
Wide working temperature range (-10℃ to 45℃) – reliable in outdoor and travel environments.
| Specification | Value |
|---|---|
| Model | SHIDU M900 wired |
| Output Power | 25W |
| Speaker | Dual voice coil |
| Water Resistance | IPX5 |
| Frequency Response | 80Hz – 18KHz |
| Microphone | Wired |
| Bluetooth Version | 5.0 |
| Play Time | 5–7 hours |
| Battery Capacity | 2200mAh (7.4V) |
| Charging | DC 9V / 1.2A |
| Audio Inputs | TF card / USB / AUX / MIC |
| Weight | 552g |
| Size | 138.2 × 108.3 × 51.2mm |
| Case Material | ABS + TPU |
| Color | Black / Green |
| Working Temperature | -10℃ ~ 45℃ |





Who Is the M900 For?
Outdoor teachers & trainers – deliver field lessons, sports classes and training outdoors without worrying about light rain.
Tour guides – keep large groups clearly informed in outdoor, noisy or open-air venues.
Public speakers & event hosts – the 25W dual voice coil output suits markets, exhibitions, rallies and demonstrations.
Field workers & first responders – reliable voice projection in weather-exposed environments.
Why Choose a Waterproof (IPX5) Wired Voice Amplifier?
A waterproof wired voice amplifier like the M900 protects its electronics against rain and splashes, so you can teach, guide or present outdoors with confidence. Its wired microphone provides zero-latency, interference-free voice, while the 25W dual voice coil speaker delivers loud, clear sound that a standard low-power amplifier cannot match. If your work regularly takes you outdoors or into open venues, IPX5 waterproofing and high power are worth the small extra weight.
What's in the Box:
1 × SHIDU M900 voice amplifier
1 × Wired microphone
1 × Charging adapter (DC 9V)
1 × Lanyard /shoulder strap
1 × User manual
Why Choose SHIDU as Your Manufacturer?
SHIDU Acoustic (Shenzhen SHIDU Digital Co., Ltd.) is a professional voice amplifier and PA system manufacturer. We offer factory-direct pricing, OEM/ODM customization, strict quality control and responsive after-sales support, with a dedicated team responding to inquiries within 24 hours. Whether you need one unit for your classroom or bulk supply for distribution, we can meet your requirements.
Frequently Asked Questions (FAQ)
Q: Is the SHIDU M900 a wireless or wired voice amplifier?A: The M900 is a wired voice amplifier — it uses a cable-connected microphone for stable, zero-latency voice transmission.
Q: Is the M900 waterproof?A: Yes, the M900 has IPX5 water resistance, so it is protected against rain and water splashes during outdoor use.
Q: What is the output power of the M900?A: The M900 delivers 25W output through a dual voice coil speaker, with a frequency response of 80Hz–18KHz.
Q: How long does the M900 battery last?A: The M900 provides about 5–7 hours of play time on its 2200mAh (7.4V) battery.
Q: What audio inputs does the M900 support?A: It supports TF card, USB, AUX and microphone, plus Bluetooth 5.0 for wireless audio.
Q: How much does the M900 weigh?A: It weighs just 552g, with a compact body of 138.2 × 108.3 × 51.2mm in an ABS+TPU casing.
Q: Can I get custom (OEM/ODM) orders for the M900?A: Yes. As a manufacturer, SHIDU supports OEM/ODM customization. Contact us and we'll respond within 24 hours.











