Checkout this cool Vnetphone V2-500 Interphone Headset.
Reviewing all the specifications below:
https://www.chinavasion.com/china/wholesale/Home_Audio_Video/Headphones_Earphones/Vnetphone-V2-500-Bluetooth-Interphone-Headset/
See all Home Audio / Video in the below URL:
https://www.chinavasion.com/china/wholesale/Home_Audio_Video/
Chinavasion is the leading wholesale and dropship company offering China electronics and gadgets.