- Using Digital Audio Power IC-TPA3116 of Texas Instruments.
- Indicating the working state of double-color LED aperture.
- Use 4.2 version Bluetooth wireless transmission of audio, high-quality sound quality assurance.
- With PC sound card function, music can be played directly by inserting PC through USB line.
- Amplifying Driver Circuit with Low Noise Earphone.
- Automatic switching of working mode.
- CNC numerical control processing, anodic alumina alloy shell, precision fabrication.