1. Product size: 37x8mm
2. Net weight of the product: about 4g.
3. Color: gun gray.
4. All metal material gold plated interface.
5. Through this adapter you can convert Samsung or Android OMTP standard headphones to CTIA or you can convert CTIA headphones to OMTP. It is two-way mutual rotation. If the headphones and mobile phones are not compatible you can add this adapter. Automatic conversion without manual switching.