Does anyone know what remote goes to this sony home theater blue ray disc player?

So my boyfriend bday is coming up soon amd he has this amazing blue ray home theater player but he lost the remote for it so i want to buy him just the remote! I have the serial number thats on the box but i cant find the remote ! Please help !!!
Sony blue ray disc
Bd/dvd home theatre system bdv-e300
serial no 8808772