1.The DAC Module provides a super affordable high-quality DAC for the Raspberry Pi. 2.Since it's digital audio, it sounds really good, much better than the onboard analog audio. 3.The stereo jack comes soldered onto the board already. 4.Uses the PCM5102A DAC to work with the Raspberry Pi I2S interface 5.Since it's digital audio, it sounds really good, much better than the onboard analog audio. The stereo jack comes soldered onto the board already. Type:I2S DAC Decoder Model: PCM5102 Interface: 3PIN Power supply: 5V Colour:purple Material:plastic Package Contents: 4 x Digital Audio DAC Decoder Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.