• 【Wireless Installation】No wiring required - simply install batteries and the doorbell is ready to use, perfect for homes where running cables would damage walls.

• 【Long-Range Signal】Strong penetration capability with stable wireless signal transmission reaching 150-200 meters in open areas, easily passing through walls.

• 【45 Ringtone Options】Choose from 45 different musical ringtones with 4-level volume adjustment including silent mode for personalized notification preferences.

• 【IP44 Weather Protection】Dustproof and waterproof design suitable for outdoor installation, ensuring reliable performance in various weather conditions.

• 【Memory Function】Settings remain unchanged after power interruption, maintaining your preferred ringtone and volume selections.

Specifications:

• Working Frequency: 433MHz±0.5MHz
• Remote Control Distance: 150-200m (open line of sight)
• Transmitter Power: CR2032 3V Coin Battery (included)
• Receiver Power: 4 x DC 6V AAA Batteries (not included)
• Number of Ringtones: 45
• Volume Control: 4 Levels (Including Silent)
• Waterproof Level: IP44 (Transmitter)
• Receiver Dimensions: 77mm x 65mm
• Transmitter Dimensions: 77mm x 44mm