flash units

To prepare the indicator that tells you when the product is finished: Hold the tab and peel off the silver coloured foil from the top of the refill exposing the blue liquid use-up indicator

it's the ideal solution when an outlet is no longer needed — eliminating unsightly holes while maintaining a tidy

Suitable for gaps 3mm to 5mm

Virtually non-shrinking — no need to overfill

Shop Motion Welcome Door Bell With Music or "DingDong" Battery or Power Supply Personal Care flash unitsIt designed for using in shop, with "DingDong" sound. And also has 32 short music and welcome sound in Chinese. It uses AAA battery(included) or power supply (not included). It designed to stick on to the wall, or screw into the wall. The volume can be changed. Features: The button at the back to change from Chinese Voice to Alarm (DingDong) or Music. Sound change button located at the back. Volume change button located at the back. ON OFF button