Join Our Mailing List!


Subscribe our newsletter to get 5% OFF coupon code in your inbox


Availability: In stock

Special Price Ends In

SainSonic AX-05B (CZH-05B) 76-108Mhz Long Range Dual Mode Stereo Broadcast FM Radio Transmitter FCC Granted

Click on above image to view full picture

SainSonic AX-05B (CZH-05B) 76-108Mhz Long Range Dual Mode Stereo Broadcast FM Radio Transmitter FCC Granted


Quick Overview

  • The FM Transmitter will not drift between stations because of our advanced stereo PLL Digital Tuner Technology.
  • The FM Transmitter uses the control panel buttons to control the frequency to avoid any needs to reset the FM Transmitter.
  • The FM Transmitter is designed to operate non-stop.
  • Complete easy to follow plug & play instructions are included plus tips on getting the best distance possible.
  • Covers full FM band - you can transmit across the entire public FM band (88.1 to 107.9) on both even and odd frequencies
  • Large digital screen display - easily read what frequency you're broadcasting on with the LCD screen display
  • New TNC antenna connector prevents tipping and promotes 24/7 wireless broadcasting
  • Adjustable volume controls for 3.5mm, RCA, & MIC inputs-crystal clear stereo sound

Facebook Twitter Google+ Pinterest Addthis



Broadcasts wirelessly in both High and Low Power Output Modes (0.5 Watt or 0.1 Watt).

Built in LCD display with blue backlight.

Built in microcontroller for frequency control and display.

Built in FM stereo transmitter IC with PLL technology, surface-mount tech, reliable working condition.

Compact design with aluminum enclosure.

FCC Part 15 Compliant - We meet FCC Part 15 rules so you don't need a license to broadcast.(FCC ID: 2ABT5AX05B7C)


How to switch the output power?

Hold the power button for 3 seconds, you will see the L mode(0.1w) or the H mode(0.5w), and then choose the output mode you want.


SainSonic AX-05A VS SainSonic AX-05B



SainSonic AX-05A

SainSonic AX-05B




Output Power



Adjustable power



Adjustable volume



Micro Phone input




100 mW and 500mW power can be switched to use
     Good heat dissipation, power stability, and stereo sound quality in its class enables you to be satisfied;
     This paragraph with a microphone and volume control functions.
    100mW - 500mW NC FM transmitter to transmit the wireless signal, a signal transmission stability, clear stereo sound quality, compact intuitive, simple and easy, can be widely used in schools, communities, small-scale office and other places, it is personal FM broadcasting equipment ideal lovers.

A high-fidelity high-stability
   Japan ROHM motherboard dedicated next-generation integrated NC FM stereo radio transmitter chip PLL BH1415, built-in PLL frequency PLL, audio pre-emphasis, limiter and low pass filter circuit, can achieve high-fidelity, high stability of signal transmission

Clear stereo sound quality
     Composition of the AT24C02 AT89C2051 and control panel; after class by 2 and 1 2SC2053 2SC3355 a total of three power amplifier, to ensure that the output of three-dimensional sound effects;

Good shielding
    Design closely, not because of external sensor signals generated frequency drift;
    Excellent heat dissipation:
    Use of high quality aluminum alloy chassis, lightweight and excellent heat dissipation, can ensure the stability of continuous work equipment;

Easy to use
    Panel with LCD (blue backlight) shows transmission frequency, according to the identity of each interface to connect other hardware, easy to adjust, and intuitive



FM Transmitter Frequencies: 76-108Mhz

Tuning Step: 100Khz/0.1Mhz

RF output power: 0.1W/0.5W (Power can be switched)

Power Supply: 9-12V DC (The current load of power supply should over 1A)

Frequency Response: 20 - 15000Hz

Signal to Noise Ratio: >70dB

Distortion: < 0.5%

Operation Time: True 24/7

Antenna Design: Rubber Antenna

Antenna Connector: TNC type

Output Impedance: 50 ohm

Audio Input Connector: 3.5mm headphone connector

Mic Input Connector: 3.5mm headphone connector

Tuning Design: Stable PLL Technology

Size of Transmitter Unit: L:113mm, W:88mm, H:39mm

Transmission Signal: FM Stereo


1 x transmitter

1 x power supply

1 x manual

Customer Reviews

Items 1 to 10 of 15 total

per page
  1. 1
  2. 2
Great Product Review by Aeron
Covers backyard area great with clear audio output! Is superior to all other FM transmitters I've owned. (Posted on 3/11/14)
long range transmitter Review by Sylvia
The sound quality and stereo seperation are very good. Have fun with this. If you just want something to cover your whole house this will do it no problem. It will not only cover your house but the subdivision you live in too... (Posted on 12/4/13)
Radio transmitter Review by Siwon
I am using this little transmitter to relay two different audios from two different receivers. GREAT range and very effective!! (Posted on 4/24/13)
Solid product Review by Wendy
SainSonic transmitter has a high quality. The sound is sweet. I highly recommend it. (Posted on 4/17/13)
Powerful Review by Joe
The sound is great and the transmitter itself is solid. However, the distance can't make me satisfied. (Posted on 4/16/13)
Not bad Review by vidads
Although the distance is not for enough, the sound is great. (Posted on 4/9/13)
Super little broadcasting tool Review by jyren
It works great when it broadcasts the DJ music I like on the radio. So far so good. (Posted on 4/7/13)
works quite well Review by veshu
It is very simple to set up. I use it frequently to enjoy music. (Posted on 4/2/13)
Not bad Review by juybf
It is a good value, and it is not dissapointing. (Posted on 4/1/13)
Clear sound Review by buywe
I like it for its clear sound and its long distance. (Posted on 3/29/13)

Items 1 to 10 of 15 total

per page
  1. 1
  2. 2

Write Your Own Review

Only registered users can write reviews. Please, log in or register

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

We can accept your payment in various ways:

PAYPAL: It is much safer and easier to check out via PayPal. We will ship to confirmed PAYPAL address. Please make sure your payment address in your PayPal account is correct.

Credit Card: All major credit cards are accepted through our secure payment processor PayPal. Please don’t forget to fill in the complete shipping information on our website. The shipment will be sent to the address you registered.


Estimate Shipping

Enter your destination to get a shipping estimate.

  • Yes No

Item will be shipped within 2 working days after full payment is received. Tracking No. will be updated on and email with tracking information will also be sent to our SainSonic Members. So We strongly suggest you to register as a SainSonic Member.

Our Standard Shipping Method refers to China Post Registered Airmail and EMS ePacket, reaching most of the countries within 15 to 25 business days. We also provide Express Shipping Service ( UPS / DHL / FedEx / EMS ). Please contact us ( ) before you initiate the payment if you need Express Shipping Service.

Free shipping to USA and France via Standard Shipping-EMS ePacket or China Post Registered Airmail. To other countries, shipping fee depends on the shipping method you choose, weight of the item and its destination.

Delivery time depends on destination, logistics mode and other factors. If you have not received your items over 30 days from payment, please contact us. We will track the shipment and get back to you with a reply as soon as possible.