Is wireless:

Vocalism Principle:

Volume Control:

Control Button:

Codecs:

Private Mold:

Brand Name:

Model Number:

Style:

Communication:

Use:

Function:

Place of Origin:

Cord Length:

Waterproof Standard:

Charging chamber/Earphone:

Transmission range:

call duration:

standby time:

headphone battery:

charging box battery:

volume control:

Charge:

size:

sound quality: