Energy-saving wireless door chime

タイトルまたは説明

Model:AE****9 SmallClassname:Energy-saving wireless door chime BigClassname:DOOR CHIME Product Readme: FEATURE Patented technique of lowest radiation to ensure CE approval even with long distance. Anti-interference digital technique. ****3 different codes. Radio technique. Even the transmitter is put on the iron door, the receiver can still receive the signal from the transmitter. IP*4 waterproof transmitter. Working distance is more than *0m. Different melodies for option. Energy-saving technique.3 x LR6 batteries of receiver can work for around 6 months and battery for transmitter for around 2 years. 8 different chord melodies or *6 different melodies for option. TECHNICAL DATA Transmission:radio Frequency:**3.*5MHZ&#****4;**4.*9MHZ or **5MHZ Code number:****3 Transmitter power:<5mw Current consumption while not working<0.*5mA Loundness level:*0 dB DATTERY REQUIREMENT Bell push*1×*2V alkaline battery (*3A). Door chime*3×AA alkaline batteries(Lr6). Averagely three times a day,5s a times,battery. Lr6 can be used for nearly 0.5 year,battery *3A can be used for more than 2 years