... Easy instillation, no wiring needed, no labour involved. (wireless doorbell)6) Easy mobility, suitable for house, villa, office, hotel, food joints ... , dormitory, factory etc.7) New innovative technology (SMT), range more than 100 metersPacking information: MODEL NO.PRODUCT NAMECTN ... will go on24-26, Russian Music27-35, Arabia Music T-6 wireless communication remote control doorbell