Features:
1. Support 87.5-108.0MHz FM full-band transmitter
2. 1.4 inches dot matrix display
3. Support TF card function
4. Bluetooth answering, hanging up, rejecting, and redialing phone call
5. Bluetooth stereo music player
6. Talk echo cancellation and noise suppression (CVC) technology
7. Support dual USB output voltage, power supply to other devices, 5V/ 3.4A maximum output
8. Automatic power-off memory function
9. Support charging identification
10. Support private phone answering
11. Support power hard switch
12. Super long hose power supply
13. Support A/C clip bracket
14. Large multi-function knob key
15. Support display contrast adjustment

Specifications:
Model: ASHYBSBC30
Material: ABS
Rated working voltage: 12V- 24V
Limit working voltage: 9- 26V
USB output: 5V/ 3.4A
Operating temperature: 0-50ºC
Charging identification: support
Supported music format: MP3/ WMA
Battery voltage display accuracy: ±1V 
Load current accuracy: ±0.1A
Signal to noise ratio: > 60dB
Distortion: <0.1%
Frequency response: 20Hz- 15HHz
Left and right channel separation:> 60dB
Bluetooth version: V4.1 + EDR
Bluetooth audio processing: with A2DP (Advance Audio Distribution Profile) function
Bluetooth transmission distance: less than 10m
Bluetooth microphone effective distance: 0.5-2m
FM transmitting frequency: 87.5- 108MHz
Transmit FM mode: stereo digital PLL frequency lock
Product size: 125 x 117 x 48mm/4.92 x 4.61 x 1.89"
Packing size: 125 x 117 x 48mm/4.92 x 4.61 x 1.89"
Net weight: 77g
Gross weight: 131g