Hardware Pacers has posted a review on the Bluetake BT450Rx I-PHONO Mini

I-PHONO mini headphone set is a marvelous product. One can see that extensive time has gone into the product design and the production. Everything about this product screams high performance and solid craftsmanship. The headphones are compact enough to be tucked away in a pocket (safely tucked away in a pouch). When using these headphones for the cell phone conversations, the sound comes out of both earpieces and the microphone is sensitive enough to pick up whispers. Compared to some other Bluetooth headsets, this one doesn't cut off in the middle of the conversation and it also retains good sound quality throughout battery life. This is a product with minimum flaws that delivers brilliant performance.

Bluetake BT450Rx I-PHONO Mini Review