1.Advanced Micro Devices, volume: 1.85 * 2.11cm

2.Excellent noise suppression in the case is not connected to the input audio, the ear close to the speaker can not hear any noise

4.Unique without LC filter Class D digital power board, and can be used directly to the computer’s USB powered.

5.Dual-panel wiring, properly solve the crosstalk between the ground potential balance and channel wiring

6.Ultra-miniature design, can easily be placed in the internal space for a variety of digital products, ultra high zoom efficiency.

7.All using the hine for the entire board soldering, hand soldering iron welding quality comparable!

8.Rated working voltage 2.5-5V, limit operating voltage 5.5V.

Note: The left and right channel output of the “negative” can not, and then together, otherwise it will burn the IC and energized speaker (load) connected before.

1 * 2 Channels 3W PAM8403 Class D Audio Amplifier Board