• 55 ringtones available: Users can set any music as the doorbell ringtone according to their personal preferences
• Adjustable volume: 5 levels of adjustable volume, the loudest volume is 110db
• Large metal speaker: Good resonance effect, clear and loud sound quality
• Strong sound penetrating force: Using high-frequency transmission technology, there is no need to worry about the doorbell not ringing
• Long working distance: The working distance can reach 300 meters in an open and barrier-free environment, the signal is stable and does not interfere with each other
• Rainproof: The transmitter is rainproof, rainy days can also be used normally
• Flashing light design: The light flashing reminder can be used for mute mode

Specifications:

• Material: ABS
• Transmitter waterproof level: IP55
• Working distance: 300 meters (open and barrier-free)
• Volume: 0-110dB, five-level adjustment
• Receiver voltage: 110-240V/60Hz
• Transmitter battery: 1 x 12V 23A alkaline zinc-manganese battery (included)
• Ringtones: 55 polyphonic music
• Working frequency: 433.92MHz±280KHZ
• Working temperature: -20 to +70℃
• Transmitter size: 70x40x15mm
• Receiver size: 70x70x30mm