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S28 mini 30w portable bluetooth personal sound amplifier with Wireless UHF microphone

$99.00 / Piece | 1 Piece (Min. Order)
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Shipping fee:
Depends on the order quantity.
Lead Time:
14 day(s) after payment received
Customized logo (Min. Order: 500 Pieces)
Customized packaging (Min. Order: 500 Pieces)


Graphic customization (Min. Order: 500 Pieces) Less
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Quick Details
Brand Name:
Shidu or OEM
Model Number:
Mini Amplifier
Place of Origin:
Guangdong, China
Product Name:
personal sound amplifier
Lithium battery:
Interactive teaching, tour guiding, training etc
Charging Voltage:
DC 9V, 21
Product size:
Working time:
4-6hours(music mode), 6-8hours(micphone)
Unit weight:
sound coverage:
2500 square meter

Packaging & Delivery

Selling Units:
Single item
Single package size: 
20X17X9 cm
Single gross weight:
1.000 kg
Package Type:
China Supplier Shidu 25W The Best Portable Voice Amplifier Teachers With UHF Wireless Microphone Qty: 30pcs/CTN Meas:580*405*335mm G.W: 18.1KG 1 * DC 5V charge cable 1 * 3.5mm audio cable 1 * user manual
Lead Time :
Quantity(Pieces) 1 - 1000 >1000
Est. Time(days) 14 To be negotiated
Product Description


 S28 mini 30w portable bluetooth personal sound amplifier with Wireless UHF microphone


Model No.S28Sound coverage2500square meter
Output power25WWireless distance30~35m
Frequency domain90Hz~18KHzNet Weight298g
Charging VoltageDC 5V, 1AAppearance size123*99*48mm
Lithium batter7.4V/ 2000mAhMICUHF Wireless headset
Charging time3~5hWorking temperature -10℃~45℃
Music playing time8~10hAvailable colorblack; blue
voice amplifying time10~12hPackageGift color box
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Company Profile


            To be a leading brand , SHIDU has gather 10 years’ experience. It now has got numbers of

         technical patent, impeccable sales system online and traditional channel and highly public

         praise.According to the statistics of voice amplifier class, SHIDU  is true first brand of voice


            SHIDU takes ‘Innovation changes future’ as a concept, takes ‘Quality, Value,Perfect,Dream’

         as a core values to supply worthy products and services for the customers, to supply a higher

         criterion of voice amplifier industry!

           SHIDU is always focused in research, manufacture and marketing in the field of high-end

         educational products. SHIDU has 200 employees and over 70 of them are above junior staff or

         has became managers, 50 of them are top talents. SHIDU product has got lots of praise since

         it came to sell, it was rated as leading firm by educational circles in China, with the ability of

         two millions products per year Shidu is the largest manufacturer of voice amplifier in China, it

         has got numbers of technical patent, and promote many criterion of this industry. 




            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.






             1.Q: The OEM service is free?

                A:Yes, it is. We provide completely free OEM service including logo imprinting,gift box,

                    user manual,warranty card,master cartons. 


             2. Q: If order a sample,how long will it arrive?

                 A: Generally the sample is sent via DHL or other channels.  It will arrive in 3-5 working



             3. Q: What is the payment term?

                 A: Paypal,T/T,Western Union,Wechat,Cash,Trade assurance are available.


             4. Q: How long is the warranty?

                 A: 1 year.


             5. Q: Does it come with rechargeable battery?

                 A: Yes, it is the lithium battery.