Bảng Mạch Khuếch Đại Loa Siêu Trầm Công Suất 2*50W + 100W Bluetooth 5.0 TPA3116D2, Bộ Cân Bằng Âm Thanh Nổi Kỹ Thuật Số 2.1 Kênh AUX Amp

100% brand new and high quality.
Features:
This is a support Bluetooth 5.0 audio receiver Updated, with a pre-amplifier, Bass crossoverProcessing.
With bass, left and right channel volume adjustment, treble adjustment, the total volume potentiometer control 2.1 amplifier board.
Use DC power supply: 12-24V Power Supply, Maximum support 50W (left channel) +50 W (right channel) +100 W (bass channel) three-channel output.
Use high-performance digital amplifier chip as the core, a parallel bridge subwoofer output, do a left and right channel output.
Wide operating voltage, power-saving design, efficiency up to 90%. You can use good performance switching power supply, laptop switching power supply, you can also use the charging bottle, or car power supply and so on.

Function switch Instructions for use:
1. Plug in the power on default Bluetooth mode
2. When Bluetooth Disconnected, Single Press switch can Change to audio Input Mode.
3. Bluetooth play status, short press the switch to pause / play.

Specifications:
Voltage Range: DC 11-25V
Subwoofer frequency range: 20Hz~200Hz
Bluetooth receiving distance: > 8 m
Audio input sensitivity: 600-800mV
Frequency response range: 20Hz-20KHz
Speaker impedance: left and right channel speakers: 4-8 ohm
Bass speaker impedance: 2-8 OHM
Material: Metal and Plastic
Size: approx.101x120mm/3.98x4.72in
Color: As pictures shown
Optional Styles: with Bluetooth / without Bluetooth / Shell
Quantity: 1 Set

Note:
No retail package.
Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package Includes:
Type A: 1 x Bluetooth Subwoofer Amplifier Board
or
Type B: 1 x Subwoofer Amplifier Board
or
Type C: 1 x Shell
(other accessories demo in the picture is not included.)