Features:

1. Can use the computer USB port 5V power supply or using a mobile phone charger USB port 5V power supply.

2. battery power can also be used.

3. Can provide 3W (left channel) +3W (right channel) output power in the 4Ω load and 5V power supply conditions.

4. High efficiency 90% A class, B class amplifier such efficiency is only about 30%.

5. D class amplifier efficiency is extremely high, not because of temperature affect the sound quality, but do not add heat sink and take less space.

Description:

1. Noise canceling circuit was built in the amplifier board.

2. Power on / off without pop noise.

3. Module has a short-circuit current protection and over-temperature protection.

Specifications:

Material: Metal

Operating voltage: 2.5V-5.5V

Speaker With: 4-8ohms recommended: 4 ohms

Speaker Power: 2-8W

Size: 21 x 18 x 3.4mm(L x W x H)

Color: green

Application: LCD TVs, monitors, Laptop, Portable Speakers, DVD players, game consoles, phone, speakerphone.

Package include:

1 x Amplifier Board

Notes:

1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.

2. Please allow slight dimension difference due to different manual measurement.