b7 model button can be rotated and adjusted, x7 model button is not allowed, can only answer the phone by pressing

[Packing information]]

packing quantity: 100 pcs/piece box gauge: 51*35 * 30 CM
packing size: 11.5X8.5X4.7CM Product gross weight. 74g net weight. 39g

  packaging Accessories

1. Host 2. Manual 3. Paper box packaging

 [Technical parameters]]

rated working voltage-12V
labor consumption rate-1W
operating temperature-10~70 degrees
frequency response-20Hz to 15kHz
audio format-MP3,

bluetooth protocol supported --- HFP/HSP,OPP,A2DP
signal-to-noise ratio -- 68dB
bluetooth version-v5.0
bluetooth sound processing-sound body sound-A2DP
bluetooth transmission distance 5m
work current: 45mA (maximum)

standby current: 25mA

frequency: 2.402-2.480ghz

[FM]]

fm frequency: 87.5 -- 108.0MHz

transmit power: 87dBuv /107dBuv

effective distance: 2 m

[Product features]]

1: Suitable for all kinds of models. Large truck excavator does not support

2: Digital tube display. Screen voltage display

3: Dual USB charging port maximum total output 5V/3.1A

4: support stereo FM transmission technology

5: Supported USB flash memory card(32GB)

6: Supports MP3/WMA music files.

7: automatic power-off memory function

8: direct car cigarette holder to take electricity

10: bluetooth hands-free call

how to use car MP3:

1. Turn on the radio in the car and adjust it to an idle frequency (that is, the frequency without Broadcasting)

2. Insert this product into the cigarette lighter socket of the car and set the frequency of the product to be consistent with that of the radio just now.

3. Insert the memory card or USB flash drive of the downloaded song into the machine, or connect to the Bluetooth of the mobile phone.

4. In this way, the machine can automatically play the music in the memory card or USB flash drive or mobile phone.