- Brand: Viangs - Model: E10 - Bluetooth Name: V-PEN - Length: 166mm - Width: 8.9mm - Weight: 13.2g Thank you for viewing. This is a stylus pen for iPad. It's the type that doesn't require a Bluetooth connection to use (you can use it as soon as you turn it on). I tried to use it with my iPhone, but it was a bit of a stretch. I thought it should be used with something larger like an iPad. There's no problem with the performance, and of course, you can draw with it on an iPhone. It just wasn't a good fit for me.