Previous page WATERPROOF PUSH BUTTON FUNCTIONAL BETWEEN -14 F to 140 F 1 RECEIVERS INCLUDED 1300FT/400M WIRELESS RANGE Operating range of up to 1300 feet, perfect for anywhere at home, office, factory, classroom ect. CD QUALITY SOUND ENJOY PLEASANT MELODIES WHENEVER SOMEONE RINGS Easily choose from 60 melodies with memory function; 5 adjustable volume levels of 0-110 dB 4.5-YEAR BATTERY LIFE ULTRA-LOW POWER CONSUMPTION Ultra-low power consumption with a lifespan of up to 4.5 years, no any frequent battery replacement. NEVER MISS ANY VISITORS SUITABLE FOR HOME, CLASSROOM, FACTORY ETC.
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