This can be used with 12V 3A or 12V 5A adapter .
If you want the accessories , you can buy from the link
https://www.haitronic.cn/index.php?route=product/product&product_id=987&search=12V+3A
https://www.haitronic.cn/index.php?route=product/product&product_id=988&search=12V+5A
HS3181 MA-170A MA-170A 2CH Hi-Fi Car Amplifier
Input Voltage: 9.14~12V
Frequency Response: 20Hz~20KHz
Output Impedance: 4~16Ohms
Output Power: 2 x 15W / 4 Ohm 10% THD Max
Harmonic Distortion: <= 0.02% 4W
SNR: >=75DB
Treble: +9DB 10KHz
Bssa: +9DB 100Hz
Input Impedance: 47K Ohms
Rated Input Voltage: DC 12V
Rated Input Current: <=3A
Feature:
- Sound output is stable, high fidelity.
- Phone with bluetooth levels, implementation of the use of the phone app to control amplifier functions.
- The audio can be played in the phone.
- Aluminum casing, light and robust.
App Link:
1. Add the qr code to download the app or use app shop to seek "bt" link and download
2. Open the bluetooth to connect "bt speaker"
3. For bluetooth, open the bt link app to control amplifier MA-170A.
①Connect: To connect with the bt link app mobile
②Sound: The ma 170a & lsquo; s volume's bass's heights
③Music: Play the music to the phone (voice message 's music player)
④FM: Connection network can obtain network radio signals
⑤Line: Bluetooth music mode to the mode switch