• Homlly doorbell chime features 58 chimes and 4 levels adjustable volume to meet your different needs.
• IP55 dustproof and waterproof, withstand various harsh weather conditions (Works between -4°F to 122°F), suitable for any home, townhouse, apartment, office, school, hospital, hotel, etc.
• Operating range up to 100m in an open area with no obstructions. Higher penetration without worrying about signal obstruction, ensures you will never miss a visitor, even if you are a few rooms away or on another floor.
• Easy mount with double-sided tape. Will not interfere with other equipment in your home or those of your neighbors.
• Dimension: Button: 38*20*86mm;  Receiver: 75*75mm