50mm loud sound 4ohm 3w Medical Alarm speaker

Our this 50mm 4ohm 3w speaker can replay a loud sound, widely using medical alarm speaker. it's made of neodymium magnet, size is thin, about 15mm height, its a power speaekr, and we using mylar , plastic cone, so it also cna be waterproof, it can stand with IPX7 class waterproof,  for this 50mm speaekr, we widely using in outdoor speaker, hospital alarm speaker, medical calling speaker, medical alarm speaker and so on. our XDEC now have over 1000 type of speaker,like this 50mm sepaekr is a kind of waterproof speaekr, we have others like, multimedia speaker, mylar speaker, headphone speaker, box speaker which can have better sound effect like music.  all thise can be OEM ODM and welcome client email us for their detals need !