Radio-controlled push button to actuate flushing of toilet, for fitting to FSB support and grab rails, freely and flexibly positionable, compatible with TECE, Geberit, Viega etc., radio frequency 868.4 MHz, battery life approx. 3 years or 100,000 flushes, ABS housing approx. 85 x 46 x 16 mm, actuation by capacitive button, acoustic acknowledgment emitted by button, Ingress Protection Class IP54, power supply 3 V DC (2 x LR-1 alkaline batteries), plastic, Dark Grey approximating to RAL 7021.