Sound quality is very good With this module.
Mono digital audio power amplifier chip.
High performance and low power consumption.
Applicable speaker impedance: 4/6/8 ohm (8 ohms is the best).
Operating voltage: DC 10-30V

SPECIFICATIONS:
Recommended use Voltage 24V Output 2A Power supply
Power: 35 W
PCB Board Size: 45 x 31mm / 1.77 x 1.22 In
Weight: 22g
Color: as shown
Package List:2 board Amplifier Module