Little Bear B5 MIni Portable Dual Vacuum Tube Headphone Amplifier Audio HiFi Amp

  • 1 - 49 Pieces
  • 50 - 99 Pieces
  • >=100 Pieces
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Quick Details
Brand Name:
Model Number:
Professional Amplifier
2 (2.0)
Place of Origin:
Guangdong, China
Product Name:
Audio Amplifier
Frequency response range:
Output power:
Suggest load impedance:
115*60*13 mm
Working time:
5~8 hours
Frequency Response:
Supply Ability
Supply Ability:
5000 Piece/Pieces per Week Little Bear B5 MIni Portable Dual Vacuum Tube Headphone Amplifie
Packaging & Delivery
Packaging Details
Little Bear B5 MIni Portable Dual Vacuum Tube Headphone Amplifier Audio HiFi Amp
Lead Time :

Little Bear B5 MIni Portable Dual Vacuum Tube Headphone Amplifier Audio HiFi Amp

Product Description
Direction for use:
B5 is a tube mini headphone amplifier,size:115*60*13 mm,like a 6s cellphone. the sound feels warmer than transistor products. it has built-in battery protection circuit. It powers off after is is fully charged automatically, the charger LED turn to GREEN. Can realize the use of human intelligence. Else. we do not suggestion charging the battery and turn ON the amplifier at same time. it's bad for battery and the sound may with loud noise.

Because 6418 tube with some microphone effect. so. when you hit or knock the B5 metal shell. it's will with some "wing~~~~~~" noise. and that noise will gone about after 5 seconds. that's normal.

Performance parameters:
- Frequency response range:0-100K-0.1dB    
- Gold-plated input/output socket    
- PT2308 OP chip (you can upgrade it to a other better brand OP chip. Like BB or Muse)    
- Original nichicon electrolytic capacitor    
- TOP HiFi Original DALE resistors.    
- Precision rings resistance.    
- Battery: Lithium batteries, voltage:12V, 1000mA    
- Charging time: 2-2.5 hours to charging full the battery    
- Working time: 5~8 hours    
- Output power:80mW    
- SNR:99dB    
- Suggest load impedance:16-100Ω    
- Size:115*60*13 mm(Length XWidth X Depth)    

Reference data for 6418:
- Heater voltage:1.25V Heater current:10mA    
- Anode Voltage: 60 Cathode resistor: 220 Ω    
- Power amplification factor:20    
- Anode essential resistance:4000Ohm    
- Transconductance:5000um/s Anode circuit:8.5mA    
- Grid voltage:-9V

Package included:
- 1x B5 main amplifier    
- 1x 3.5 to 3.5 cable. for connect your cellphone to B5 amplifier    
- 2x Bandages    
- 1x Charger  

Packaging & Shipping

 Package: Normally we use the standard exporting packaging. We also can according to clients' request .

 Shipping : 

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier  we are co-operating at present.

2. By Air: Delivery from the Shanghai airport to customers’ destination city air port.

3. By Sea: Delivery from the Shanghai sea port .


Company Information
TZT has been speciliazing in Business & Industry,Hobbies & Toys,CNC Products and Health care supplies for over 5 years.We committed to enhance customer satisfaction by continually improving the process with a vision of expertise in the field. 
Aiming to provide high quanlity products and great service for buyer,we are strict on product quanlity control and offer instant communication service.Welcome to contact us!

Our Advantages:
-  Free-shipping all over the world.
-  Source only the best consumer goods and ensure the highest quality.
-  Streamline the buying and payment process, and make it as easy as possible.
-  Help the customers all over the world discover products and manufacturers in China.
-  The Shortest order processed time and speed delivery

Q1. Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.


Q2. What about the lead time?

A: Samples arrived often need 3-5 days.


Q3. Do you have any MOQ (minimum order quality)limit?

A: Low MOQ, 1pc for sample checking is available.


Q4. How do you ship the goods and how long does it take to arrive?

A: We often ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.


Q5. How to proceed an order?

A: Initially, let us know your requirements or application. Besides, We quote according to your requirements or our suggestions. Thirdly, customers confirms the samples and places deposit for formal order. Finally, We arrange the production.


Q6. Is it acceptable to print my logo on the product?

A: Yes. Please inform us formally before our product and confirm the design firstly based on our sample.


Q7: Do you offer guarantee for the products?

A: Yes, we offer one-year warranty for our products.


Q8: How to deal with the flaw?

A: Our products are produced in strict quality control system and the percent of pass is often maintained over 99.8%



Contact us

Please do not hesitate to contact me if you need any further information

Whatsapp/Tel:+8619902906050/ +8613316877875

Wechat: +8619902906050/17722596836


Address:Room 303 Building 2 Youpin Cultural and Creative Park, Zhangkeng Minzhi Street, Longhua District 
China (Mainland)

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