This speaker is a waterproof speaker, can be IPx5 class waterproof, , can stand with some water drop put on it shorter time. can be suitable for outdoor speaker, or wet condition working , 4ohm 2w design, make it louder than other 8ohm 1w speaker, Our this 40mm 4 ohm 1W 2W loud speaker driver unit small round speaker is for kinds of voice device, its feature is super thin, using neodymium magnet, can ensure power is big and strong, XDEC-40M is a nice waterproof speaker, size 1.5" Speaker 40mm Speaker, can be over 90db loudness, widely using Blood Pressure Monitor Speaker, Sphygmomanometer Speaker, Glucometer Speaker, Fetus-voice Meter Speaker, Siren Speaker, Siren Horn Speaker, Smoke Detector Speaker, Alarm Speaker,intercom speaker, doorphone speaker,elevator speaker and so on.

For now XDEC already have over 1200 type of speaker models, will help clients choose better and better speaker, we believe we can bring better sound to the world ~