Make sure charging ports are thoroughly dry right before charging. With the more substantial exterior surfaces, wipe clear having a soft fabric. Keep away from utilizing cleansing detergents and Permit the speaker dry entirely before functioning. So that you can steer clear of discrimination, BS EN fifty four-23 compliant VADs https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/