What's in the box:

BC49BQ BT Car Chargers Car MP3 Player Dual USB Smart Fast Charge Compatible for 12-24V Universal Vehicle (2)

Features:
BT V5.0 technology offers lower powers consumption and stable transmission.
Voice control for safety driving, support android and iOS system.
Support multiple play mode, like U disk, A2DP AUX input and TF card music playback
One key operation for hands-free call, which ensures driving safely.
Support to play navigation information.
Comes with a 5V/1A and a Q-C3.0 charging-port to deliver simultaneous high-speed charg-ing to driver and passenger.
Automatic powers off memory function.
Suitable for all 12-24V types of vehicles, car battery voltage detection.

Specifications:
Model: BC49
Type: 2 types(optional)
Rated working voltage: 12V-24V
Limit working voltage: 8-27V
USB output: USB1 5V/1A, USB2 Qualcomm Quick Charge3.0
Working temperature: 0-60
Charging-recognition: USB2 with Qualcomm Quick Charge 3.0 protocol
Music format: MP3WMAWAVFLACAPE
SNR: >60dB
Degree of distortion: <0> Frequency response: 20Hz-15Khz
Resolution of right and left channel: >60dB
BT version: V5.0+EDR
BT sound processing: A2DP(Advance Audio Distribution Profile)
BT transmission distance: <10M> Effective distance of BT microphone: 0.5-2M
FM frequency: 87.5-108.0MHZ
FM mode: Stereo digital PLL frequency locking
Package Size: 140*110*55mm/5.51*4.33*2.17in (type1)
140*110*60mm/5.51*4.33*2.36in (type2)
Package Weight: 117g/4.13oz (type1), 157g/5.54oz (type2)


Packing List:
1*Car chargers
1*User manual
1*Accesories (optional)
1*Aux cable (optional)