If you are talking about the Sony BDP-S6700, you don't need this adapter, as it has Bluetooth built in. As per Sony's information page for the BDP-S6700:
"You just need the BDP-S6700, a wireless DualShock™ 4 controller, access to the web and a subscription to PlayStation® Now to stream a wide selection of PlayStation® titles on our new cloud-based platform. Every gamer’s paradise."
As per the specs, up to 2 DualShock 4 controllers can be connected to the BDP-S6700 simultaneously.