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Nulaxy FM Transmitter Bluetooth FM Modulator Handsfree Car MP3 Player Support Flash

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97.1 star rating
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Brand Name
Special Features
Out Power
Model Name
Item Size
Item Weight
70 g
Material Type
Item Type
FM Transmitters
Special Feature
FM Transmitter
Special Feature 2
Car MP3 Player
Special Feature 3
Bluetooth Version
FM Frequency
LCD Display Size
1.44 inch
TF Card Slot
USB Port for USB Flash Drive
USB Charging Port
1*5V 2.1A
AUX Port

15 Feb 2018
this is my second order and im happy with the product

- G*****t K.
15 Feb 2018

- V***n J.
06 Dec 2017
it was second order. petersburg delivery fast. modulator.

- S********o I.
08 Jan 2018
Haven't tested aux and USB yet, but Bluetooth works perfect. Pure sound.

- R**e H.
13 Dec 2017
Happy with my purchase! Does what it's supposed to do and shipping was pretty fast too.

- J****r H.
21 Dec 2017
fast delivery and works great

- D****s B.
07 Feb 2018

- E***a S.
30 Jan 2018

- S****a J.
19 Jan 2018

- A**** S
07 Feb 2018
Thank you

- I***e S.
07 Feb 2018

- I****n S.
19 Jan 2018

- J***f K.
04 Feb 2018

- G**i M.
13 Oct 2017
Works very well !

- Anonymous Buyer
23 Jan 2018
Thank you

- G*******e E.
31 Jan 2018

- A*** B
21 Jan 2018
Thank you

- S****y M.
02 Feb 2018

- Anonymous Shopper
11 Jan 2018
Thank you

- A****m P.
16 Nov 2017
Shipped fast and works

- A***n V.

Note : Because of the Chinese New Year , our warehouse on holiday in 2018-02-07 to 2018-02-25 . your order we will send out after 2018-02-25 .






KM21 FM Transmitter Bluetooth FM Modulator Handsfree Car MP3 Player Support USB Flash Drive SD Card With USB Charger Aux Out/In


  • Bluetooth Version: V3.0 + EDR
  • Effective Bluetooth Range: 10 meters
  • FM Frequency: 87.5MHz - 108.0MHZ
  • Working Voltage: 10V~24V
  • Audio Input/Output: 3.5mm audio interface
  • USB Charging Port: 5V/2.1A



  • Multi-Playing Modes
A: Via Bluetooth; B: Via Micro SD/TF card (MP3, WMA, WAV format supported); C: Via USB flash disk; D: Aux input and   output Via 3.5mm Audio cable (MP3 player,tablet, etc.),Short press the Mode button to switch the playing modes 
  • Crystal Sound and Hands-free Calls 
Built-in microphone feature can offers your hands free talking and wonderful music, utilized most advanced  interference and noise cancellation technology, to grant most crystal sound quality. 
  • 1.44'' Large LCD Backlight Display Screen: 
1.44 inches screen provides clear display: song name, incoming phone number and voltage of the car battery.
  • Faster Charging STATION: 
Comes with a 5V-2.1A charging port which can charge most USB devices, better charging performance!
  • Three Song Playing Modes and Reading TF/USB Disk folders 
It can read folders in TF Card or USB disk ,also supports Normal,Repeat and Shuffle Playing Modes while playing  songs in USB flash driver or TF card ,just long press the Mode button .
  • Power on/off Manually 
Long Press 5 seconds phone button to turn on or turn off, humanity operation and easy operate.
Package Included:
  • 1* FM Transmitter
  • 1* 3.5mm Audio Cable
  • 1* User Manual


User Tips 

  1. All functions keys are designed for Bluetooth Mode,if you connect through Aux-in using audio cable , you will have to operate on your phone to adjust volume ,change songs or answer phone calls
  2. Please check if both the car radio and transmitter are on the SAME station. If not, please set both of them on the same station to avoid noise .
  3. To achieve best audio quality, please set the volume on your phone to maximum and then adjust the volume for your car stereo; you are not suggested to adjust volume of your car speaker to maximum (this will bring lot noise).
  4. If there is no sound when you make a phone call, you can try to turn up the voice call volume on your cell phone and volume of the transmitter.
  5. Please only use Micro SD card in FAT format up to 32G memory ; it only supports music in MP3 WMA and WMV formats 


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Shipping CompanyShipping CostEstimated Delivery Time
DHL3 - 7 days
UPS Expedited3 - 7 days
EMS5 - 14 days
Post Air MailFree Shipping15 - 45 days
Return PolicyIf the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller ServiceOn-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).