This product is very clever because it's compact and no annoying is comming while the Bluetooth is disconnected.This is very useful product for my usage because in my i10 car this is the only product which is suitable for the dc port.And the main thing is, in the Flipkart specification they mentioned this product as Bluetooth 4.2.But it's not 4.2 it's actually a Bluetooth 5.0 connectivity product.