- Place of Origin:CN
- Type:Mini Amplifier
- Channels:1
- Brand Name:SHIDU
- Model Number:SD-S318 wireless teachers speaker
Amplificador Portatil con Microfono Inalambrico SD-S318
What kind of people can I used for?

This personal voice amplifier suitable for:
A: Sales people, teachers, clergy, tour guides, coaches, public speakers, lecturer, exercise instructor or
presenter.
B: Parkinson’s, MS, Guillain Barré syndrome, ALS and stroke may impair throat or chest muscles, damage
or partially paralyze vocal chords or diminish lung capacity.
C: Artificial larynx users, esophageal and TEP speakers, and those who have lost their vocal chords and/or
larynx following throat cancer surgery.
D: Everyday classrooms, large auditoriums, and indoor and outdoor sports venues.
Main featuers:
1. 10W high-quality double magnetic trumpet --- more loud, clear and vivid sound;
2. Imported ABS material with high light technology --- durable and wear-resistant;
3. One touch voice recording --- amplify directly;
4. One touch single cycle function;
5. Imported microphone, advanced circuit IC, restrain squeal phenomenon effectively;
6. Support AUX audio input --- can connect with PC or mobile phone and work as a SoundBox;
7. Supports TF card or USB flash drive --- can directly play MP3, WMA & WAV format audio;
8. FM stereo radio --- can automatically search and save the radio;
9. PA coverage up to 400~500 square meters;
10. Support reverberation sound;
11. Intelligent real voice prompt.
Other advantages:
1. Small size and lightweight fashion sound amplifier;
2. Patented appearance;
3. Portable voice amplifier with waistband: clip on belt or use belt tie on waist or hang on shoulder;
4. All-in-one: portable voice amplifier, speaker, TF card / USB flash disk player & FM;
5. Fashion design amplifier: optional multi-color;
6. Economical portable magaphone: can be used with both wired & wireless microphone.
Wide application:
* Portable voice amplifier for teachers usage in classrooms;
* Ultra light personal megaphone for tourist guide usage;
* Mini sound amplifier for leaders usage in meeting;
* Portable waistband amplification devices for outdoor activities usage;
* Personal voice AMP for promotional specialist;
* Loudspeakers for coaches.
Technical parameters:
Output power: | 10W | Frequency response: | 90Hz~18000Hz |
Charging Voltage: | DC 5V; 500mA | Lithium battery: | 1500mA |
Working time: | 6~10 hours (musical mode), 12~18hours (microphone mode) | Charging time: | 3~5 hours |
Available color: | sky; purple; blue | Product size: | 120*92*39mm |
Working temperature: | -10℃~45℃
| Unit weight: | 291g |
Sound coverage: | 400~500 square meters | Wireless distance: | 10~20m |
Standard package:
1 * main machine
1 * waistband
1 * wired microphone (or wireless microphone)
1 * USB cable
1 * 3.5mm audio cable
1 * user manual







Who we are
As the biggest manufacturer of portable voice amplifier in China, SHIDU is a high-tech enterprise concerned with R&D, production, sales and service.

Covering an area of 3000 square meters, we now have over 200 workers. With more than 50 professional experts with higher academic title and 5 world leading production lines with 5S management, we have the production capacity of 20,000 sets per month.
Strictly following the ISO9000 quality control system standard, every product in SHIDU has been carved carefully.

SHIDU owns many technical patents with designing, researching & developing and producing every product independently. Along the way, we always remember the initial determination.
Why us
A. Rich experience in global market.
B. Strong R&D team for OEM and ODM.
C. Standard production process and quality control.
D. Professional test equipment.
E. Will reply you within 24 hours once we received your inquiry & got your contact information.
F. Prompt reply and credible after-sale services.
Our honor
Highly Approval from Domestic & Foreign
In this HK Fair, SHIDU adopted strategy as “acoustic voice amplifiers first, selected high-quality Bluetooth speaker supplemented”, and main promoted SHIDU’s self-developed wireless amplification technologies, has got highly highly approval and trust from customers all over the world.

Certifications
* SHIDU products all adopt ABS environmental protection material
* SHIDU products have complete testing certificate
* SHIDU goal is to let you share our advanced technology
* Quality Goods, Value-based, Perfect, Dream