... ,15,20,25,30minutes Useful for hotel,bathroom,toilet,any public places Features:*Microcomputer (CPU) control;*infrared Encoding and Decoding technology ... hours of 3 working interval;*with a single control, group control function, may be a remote control device group control more than perfume dispenser.Features ... Miss Vicky on service you in 24 hours Novelty car air freshener with remote control