Wireless Doorbell ZAMEL ZUMBA ST-390 — 80 dB, 36 Melodies, Model SUN10000422

ZAMEL ZUMBA ST-390 is a wireless doorbell system designed for homes and small offices. The set delivers an 80 dB maximum sound level and offers 36 selectable melodies, providing a range of audible alerts without the need for wiring. The compact transmitter and receiver enable flexible placement at entrances, reception desks or interior doors where a reliable audible notification is required.

Advantages

The wireless design removes the need for electrical wiring, simplifying installation and allowing relocation of the receiver as needed. A maximum sound output of 80 dB ensures the chime is audible in typical domestic and small commercial environments while the 36 melody options allow users to select tones appropriate for different locations or preferences. The components are compact and unobtrusive, and the system supports straightforward operation and maintenance.

Suitable for

• Apartment and house entrance notification
• Small office reception or lobby alerts
• Internal doors requiring audible alerts (e.g., meeting rooms)
• Temporary or rented locations where wiring is not feasible

Key specifications

• Maximum sound level: 80 dB
• Number of melodies: 36 selectable tones
• Wireless connection between transmitter and receiver
• Compact transmitter and receiver form factor for flexible placement
• Suitable for indoor installation in homes and small offices

How to use

Place the wireless transmitter near the chosen door or entrance and mount the receiver in a central indoor location where the chime will be clearly heard. Pair the transmitter and receiver following the included instructions, select the desired melody from the receiver controls, and adjust the receiver position for optimal audibility. No hardwiring is required; power the units according to the manufacturer instructions and test the system after installation to confirm coverage and sound level.

Usage recommendations

For reliable operation, install the receiver in an unobstructed indoor area at ear height and avoid placing it inside large metal cabinets or behind thick walls that may reduce wireless range. Choose a melody and volume appropriate for the environment—lower volume for small private rooms, higher volume for entrances or reception areas. Regularly check batteries or power supply according to the manufacturer guidance to maintain consistent notification performance.