【ZX-DB30】
Smart Doorbell

This DB30 doorbell supports up to 150 meters (500 feet) stable wireless signal penetration through walls and floors, fully covering villas, multi-story houses and large apartments. No signal dead zones even between separated rooms. The dedicated signal chip ensures instant trigger without delay every time visitors press the transmitter. You will never miss a ring whether you stay in the backyard, upstairs bedroom or basement.

It stores 40 unique ringtone options for personalized matching, plus 5 volume gears ranging from silent 0dB to 110dB loud volume. Turn down the volume for sleeping babies or boost it for noisy workshops. The built-in memory function automatically saves your favorite ringtone and volume setting when power cuts off, eliminating repeated reset after power recovery. A blue LED light flashes as silent visual reminder for quiet mode.

The DB30 system supports unlimited pairing of additional plug-in receivers and push button transmitters freely. You can install multiple receivers in kitchen, bedroom, garage and study, or mount extra transmitters at front door, backyard gate and side entrance. All paired devices synchronize the same ringtone and volume, forming a whole-house alert network to ensure you catch every visitor’s call anywhere indoors.

The receiver is plug-in socket design without wiring or charging; just plug it into any indoor power outlet directly. The transmitter comes with self-adhesive tape for quick wall mounting on doors or frames, no drilling required to damage walls. Pre-paired out of factory, ready to use right after unpacking. Compact slim shape fits all decoration styles and takes little wall space.

This wireless doorbell fits all usage scenes: family villas, apartments, hotels, offices, factories and hospitals. Silent low-volume mode works perfectly for nurseries and wards; high loud volume suits busy retail stores and warehouses. Its reliable stable signal and durable plastic housing adapt to indoor daily use year-round, offering a cost-effective visitor reminder solution for both household and commercial properties.