1. bluetooth amplifier, supports connect to smartphones.
2. Supports USB flash drive and max 4G TF card(Not included) playing.
3. Supports connect to the external audio devices (Not included).
4. Supports treble and bass adjustment.
5. Clear and comfortable sound.
6. A remote control is included.
Voltage: 12-24V 220V
Maximum power: 25-30W
Impedance: 4 Ω
Frequency response range: 20-20000
1 X Amplifier
1 X Remote Control
1 X DC Power Cable (48cm)
1 X Amplifier Cable (21cm)
1 X 220V Power Cable (140cm)